Introduction

!
This section includes updated information, added since it was first
published in January 2015.
Section Last updated
Introduction -
Plaster skimming 10/06/2019
Jointing 10/06/2019
Tiling 10/06/2019
Decorative effects 10/06/2019

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Finishes
Finishes
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Introduction

Finishes
Essential to all our high performance systems is our full
range of finishing products
Finishes
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 Introduction
Finishes
British Gypsum’s range of finishes provide
everything needed to complete the wall lining,
partition, floor and ceiling systems, regardless
of the size and complexity of the project
specification.

Plaster skimming to plasterboard is a popular

method of providing a smooth, seamless surface
ready to receive decorative treatment.
Alternatively our jointing materials produce
durable joint reinforcement and a smooth,
continuous, crack-resistant surface ready for
priming and final decoration.

The range of boards available for tiling offers

flexibility of design and peace of mind when
installed in both wall linings and lightweight
partition systems.

To relieve flat runs of lining, joints and angles,

and to enhance walls and ceilings, a variety of
decorative effects are available which can be
installed simply and quickly.

– Plaster skimming - C08. S02. P02

– Jointing - C08. S03. P02

Finishes
– Tiling - C08. S04. P02
– Decorative effects - C08. S05. P02

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You may also be interested in...

If you are looking for finishes with high sustainability credentials then Thistle plasters have attained
BES 6001 ‘Excellent’. We have also developed EPDs for a number of our plasters’ range.
Refer to C08. S01. P51 – Sustainability.

0115 945 6123 bgtechnical.enquiries@bpb.com C08. S01. P02

Plaster skimming

Plaster skimming
Plaster skimming to plasterboard is a popular method of providing
a smooth, seamless surface ready to receive decorative treatment

All our systems are covered by SpecSure® when using

genuine British Gypsum and Saint-Gobain Isover products
Finishes
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 Plaster skimming
Plaster skimming
Skim plastering gives many of the advantages Refer to C02. S01. P49

of a traditional solid plaster finish such as

robustness, acoustic enhancement and a quick
turnaround on site. Refer to C01. S01. P07

Key benefits
— Surfaces are finished in one visit to site
— A smooth and uniform finish can be achieved in
one visit to site using our Thistle plaster range
— Enhanced acoustic performance is achieved
by using Thistle MultiFinish on a range of
GypWall systems
— Excellent scuff resistance can be achieved
through the use of ThistlePro DuraFinish

Finishes
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Additional information
Whatever your requirement, the flexibility of plaster
skimming can be used in conjunction with a wide range
of system solutions

0115 945 6123 bgtechnical.enquiries@bpb.com C08. S02. P02

 Plaster skimming performance
Plaster skimming

Reaction to fire

All Thistle finish plasters achieve a Euroclass A1 reaction to fire

rating, except ThistlePro DuraFinish, which is A2, s1 - d0. This makes
them an appropriate finish for almost all situations.

Refer to C02. S01. P06 – Fire.

Table 1 – Physical properties

Approx. coverage m² Approximate

Bag weight (based on 2mm thickness)
Plaster category Plaster type setting time
kg
per 1000kg per bag hours

Essential Thistle MultiFinish 25 410 - 430 10 1.5

Thistle BoardFinish 25 410 - 430 10 1.5
Thistle SprayFinish 25 420 - 440 11 1.5

Performance ThistlePro DuraFinish 25 410 - 430 10 1.5

ThistlePro PureFinish 25 410 - 430 10 1.5

Specialist ThistlePro Magnetic 25 2001 51 1.5

Based on 3mm thickness.

1

Sound insulation Quality of finish

The application of Thistle finish plasters can help the plasterboard Homeowners and building occupiers are quick to notice a poor
element to achieve optimum acoustic performance. They do this in quality finish. Thistle finishing plasters, are capable of providing a
two ways: superior, smooth surface whether you’re skimming on plasterboard
or using a two-coat plaster system. And it’s ready to take whatever
– A change to the measured acoustic performance, by applying decorative treatment you choose.
2mm Thistle MultiFinish to both sides of certain GypWall
Refer to C07. S02. P02 – Plaster systems.
partitions, has a positive effect on the sound insulation rating.
This benefit results in a performance uplift of up to Rw 2dB Damage resistance

– Any small gaps or other air paths will be sealed during A skim finish not only provides a better finish, it is also more robust,
plastering, limiting flanking routes for sound transfer providing additional resistance to damage in high traffic areas
or rooms subject to greater wear and tear. ThistlePro DuraFinish
This is effective on partitions that are limited by their high provides additional resistance to accidental damage, glancing
Finishes

frequency performance (coincidence region). This application will impacts and repeated abrasion, which can cause scratching,
also add mass to the partition, which has a positive effect on the gouging or chipping of other wall finishes. Using ThistlePro
mid-frequency of the spectrum. DuraFinish reduces the extent and frequency of repair work, and
minimises associated costs and disruption. It also has excellent
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Refer to C02. S01. P18 – Building acoustics. adhesion to most backgrounds, therefore damage to small areas
does not spread or cause debonding, which makes repair easier.
Stability

Thistle finish plasters attain high strength during the drying

process and do not suffer from inherent shrinkage cracks.

C08. S02. P03 british-gypsum.com

Plaster skimming performance (continued)

Plaster skimming
Scan the image with this frame
for more information and
videos related to this system
Or visit gyp.sm/b/ly

1 2 3 4

5 6 7 8

Table 2 – Performance : comparison between Thistle MultiFinish and ThistlePro DuraFinish

Image Property Test Real examples Damage Performance Improvement

tested method measured %

ThistlePro Thistle
DuraFinish MultiFinish

1 Glancing impact 150 kg trolley, 30° angle, Corners of furniture, Depth of 0.68mm 2.60mm 74%
resistance 1 m/s speed, simulating trolleys and wheeled identification
impact energy of 75J equipment, general
light impacts

2 Scratch Taber Shear / scratch Light contact with Weight loss 0.004g 0.07g 94%
resistance, tester, standard sharp objects
diamond stylus

3 Scratch Taber Shear / scratch Light contact with Visual No damage Visible scratch -

Finishes
resistance tester, modified to use key, sharp objects assesment
180g load

Taber Shear / scratch Medum-heavy Weight loss 0.003g 0.195g 85%

tester, modified to use key, contact with sharp

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3.4kg load objects

4 Scratch Elcometer Medium contact with Weight loss 0.08g 0.2g 60%
resistance sharp objects

5 Abrasion Taber Abraser Rubbing off chair Weight loss 0.27g 0.3g 10%
resistance backs

6 Surface hardness BS EN 13279-1 - Heavy objects leaning - 15N/mm² 15N/mm² 0%

average ball indentation on wall

7 Compressive BS EN 13279-1 - None - 12N/mm² 10N/mm² 20%

strength prism crush

8 Flexural strength BS EN 13279-1 - None - 5.0N/mm² 3.5N/mm² 43%

prism 3-point bend

0115 945 6123 bgtechnical.enquiries@bpb.com C08. S02. P04

 Plaster skimming design
Plaster skimming

Scan the image with this frame

for more information and
videos related to this system
Or visit gyp.sm/b/li
Specialist finishes

Indoor air quality – ThistlePro PureFinish

We spend 80% of our time indoors, in schools, offices, hospitals and 2
our homes. We take it for granted that the air we breathe is clean
and pollutant-free, as fresh as the air from the great outdoors. Yet
impurities found in both our working and living spaces can cause
health problems and a reduction in our general wellbeing.

Pollutants called VOCs - volatile organic compounds - are naturally

emitted into our homes, offices and schools for people, pets,
cleaning products as well as furniture, carpets, paints and varnishes.

1
INDOOR OUTDOOR
VOC concentrations
in the air
(ppm)

ACTIVair technology is designed specifically to decompose

formaldehyde emissions into non-harmful inert compounds,
thus eliminating the risk of re-emission. Tests show that ACTIVair
decomposes 70% of the formaldehyde in a controlled test
environment.

Decoration – ThistlePro PureFinish

Gypsum-based plasterwork must always be thoroughly dry before
decorating, although a coat of permeable paint can be applied in
the interim. ThistlePro PureFinish plaster surfaces should be
decorated with a permeable paint with a low VOC content. The
Source: Indoor Air Quality Observatory surface will accept the majority of wall covering adhesives. The
VOC concentration manufacturers' recommendations in respect of applied decorative
treatments should always be followed.
People often complain about health problems after extended
periods of time spent indoors. Many of these symptoms can be Interactive walls – ThistlePro Magnetic
attributed to VOCs: ThistlePro Magnetic is a plaster designed to attract magnets -
turning your wall into an interactive area.
– Headaches

– Nausea With a plaster that attracts magnets you can turn any wall in any
– Allergies and increased allergic reactions room into an inspiring interactive gallery or notice board that you
Finishes

can change as often as you like, no fuss, no mess.

– Lack of concentration

– Eye irritation ThistlePro Magnetic can be applied to new or existing walls.Applied

– Fatigue with a minimum 3mm thickness it can be decorated with standard
C08

emulsion paint or combined with specialist decorative finishes,

– Breathing problems
including blackboard and whiteboard paint or wallpaper.

The World Health Organisation concerns about formaldehyde

(which is a common VOC) in relation to human health are well
published (WHO guidelines for indoor air quality: selected
pollutants; 2010).

You can’t see VOCs, or smell them. Therefore there is no way of

knowing what concentrations you are being exposed to on a daily
basis. As building regulations lead to more airtight construction, the
importance of VOC management becomes more critical.

ThistlePro PureFinish is a versatile final coat plaster that provides

good results on all suction backgrounds where there is a
requirement for improved indoor air quality. ThistlePro PureFinish
contains ACTIVair technology and is an excellent choice of plaster
where both undercoats and board backgrounds are involved in
the same job.

C08. S02. P05 british-gypsum.com

Plaster skimming design (continued)

Plaster skimming
board can be skimmed where they are being used for convenience
and are away from wet areas. Tiling is not recommended on
Additional information plaster skimmed plasterboard. Application techniques and joint
reinforcement are the same as those used on plasterboards. Plaster
For full information and links to creative should be applied only to the face of moisture resistant boards.
uses, for ThistlePro Magnetic refer to Pre-treatment with Thistle Bond-it is required when using Thistle
british-gypsum.com/products/ BoardFinish or Thistle MultiFinish. Pre-treatment is not necessary if
thistle-magnetic-plaster using ThistlePro DuraFinish.

Tiling
Tiles up to a weight of 20kg/m² can be applied directly to the
Planning - key factors Thistle finish coats, except where the system includes a bonding
Thistle BoardFinish is designed to provide a 2mm skim finish to agent. As the total weight of tiles and plaster applied over a
plasterboards, Glasroc F multiboard and Glasroc F firecase. bonding agent is limited to 20kg/m², consideration should be
Thistle MultiFinish offers an alternative that is also capable of given to tiling directly to the background. If plastering to provide a
finishing undercoat plasters. background for tiles, avoid polishing the surface. Polished plaster
surfaces should be roughened and a suitable primer used.
Where increased resistance to accidental damage is required, or Tiles should not be applied directly to Thistle undercoats, with the
where finishing Rigidur h, ThistlePro DuraFinish is recommended. exception of Thistle DriCoat.

Care must be taken when applying finish coats in low temperatures

and an allowance made for slightly longer setting and drying times.
Plasters must only be applied where backgrounds are not frozen or SpecSure®
will remain at 2°C or above until dry.
All our systems are covered by SpecSure® when
ThistlePro DuraFinish has a similar setting time to Thistle using genuine British Gypsum and Saint-Gobain
MultiFinish, although working characteristics vary slightly. The full Isover products.
thickness of 2mm must be applied for the optimum performance
to be achieved. Ambient and background temperatures must be
maintained above 5°C until fully dry to apply ThistlePro DuraFinish.

Backgrounds

Plasterboards (excluding moisture resistant grade boards)

Skimming should be specified only on the face of boards, i.e. the
side without a paper overlap. This will be the ivory face in the case
of Gyproc WallBoard, Gyproc WallBoard ten, Gyproc DuraLine and
Gyproc HandiBoard, the coloured face of Gyproc FireLine and

Finishes
Gyproc SoundBloc. Joints must be reinforced. For greatest resistance
to cracking this should be carried out using Gyproc Joint Tape.
Alternatively with Thistle ProTape FT50 or FT100 can be used. A
range of corner and stop beads are available for reinforcement of
external angles and edges. C08
Glasroc F multiboard, Glasroc F firecase and Rigidur h
Skim finishing should be applied to the smooth face of the board.
Rigidur h needs to be treated with diluted Thistle GypPrime prior
to skimming to control the suction. Application techniques and joint
reinforcement are similar to those used on plasterboards.

Moisture resistant grade boards

Skim plastering is not normally specified to Gyproc Moisture
Resistant and mr grade boards. These types of board are intended for
use in environments of higher than normal humidity for which no
gypsum plaster is designed to be suitable.

Where moisture resistant board options are used in shell and core
construction to provide temporary resistance to high moisture
conditions, they can be skimmed at a later date after the building
envelope has been made weather-tight. Likewise, moisture resistant

0115 945 6123 bgtechnical.enquiries@bpb.com C08. S02. P06

 Plaster skimming components
Plaster skimming

Plasterboard accessories ( Refer to section C10. S05. P02 for details)

Gyproc Joint Tape

A paper tape designed for reinforcement of flat
joints or internal angles.

Finishing products ( Refer to section C10. S06. P02 for details)

Thistle Thin Coat Plaster Angle Bead - Skimming Thistle Thin Coat Plaster Stop Bead - Skimming
Galvanised steel ‘thin coat’ bead with perforated Galvanised steel bead with perforated wings for
30mm wide wings for reinforcement of external finishing and reinforcing edges of thin coats of
angles in 2mm plaster finishes. plaster.

Thistle ProTape FT50 Thistle ProTape FT100

Self-adhesive 48mm wide glass fibre mesh tape. Self-adhesive 100mm wide glass fibre mesh tape.

Thistle Bond-it Thistle GypPrime

Bonding agent for smooth and/or low suction Primer to reduce suction on very dry backgrounds.
backgrounds providing an adequate key.

Essential Finish Coat ( Refer to section C10. S06. P02 for details)

Thistle MultiFinish Thistle SprayFinish

To provide a plaster skim finish on most common To provide a plaster skim finish by spray or hand
backgrounds including undercoat plasters and application, ideal for medium to large projects.
plasterboard. Can provide enhanced acoustic
performance.

Thistle BoardFinish
To provide a plaster skim finish to
Gyproc plasterboards.

Performance Finish Coat ( Refer to section C10. S06. P02 for details)
Finishes

ThistlePro DuraFinish ThistlePro PureFinish

To provide a plaster skim finish and provide up to To provide a plaster skim finish with
60% tougher resistance to accidental damage. ACTIVair technology. Used to finish most
common backgrounds including undercoat plasters
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and plasterboard. For more information refer to

C02. S01. P49.

Specialist Finish Coat ( Refer to section C10. S06. P02 for details)

ThistlePro Magnetic
To provide a plaster skim finish that provides an
attraction to magnets used to finish a wide range
of backgrounds, including undercoat plasters and
plasterboard.

For further details on system components refer to C10. S01. P02 – Products, plaster and plaster accessories.

C08. S02. P07 british-gypsum.com

Plaster skimming installation overview

Plaster skimming
This is intended to be a basic description of how skimming is applied.
For detailed installation guidance refer to the British Gypsum Site Book.

Thistle plasters should be mixed by adding Thistle Thin Coat Angle Bead or Thistle Where there is an increased risk of cracking,
to clean water and using clean mixing Thin Coat Mini Mesh Bead is fixed to the or where gaps exceed 3mm, the gaps are
equipment. Contamination from previous plasterboard angle by embedding in the reinforced with Gyproc Joint Tape bedded
mixes must be avoided as this can adversely finish plaster. in Thistle plaster. In other situations
affect the setting time and strength. plasterboard joints can be reinforced with
Thistle ProTape FT50 or FT100 glass fibre
mesh tape.

Additional information
For full installation details, refer to the
British Gypsum Site Book, available to
download from british-gypsum.com

Thistle plaster is applied with firm pressure,

built out to the required thickness in two
applications and trowelled to a smooth
matt finish. Good site practice should
be followed, as outlined in BS EN13914
- 2: Design Considerations and Essential
Principles for Internal Plastering.

Finishes
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0115 945 6123 bgtechnical.enquiries@bpb.com C08. S02. P08

Jointing

Jointing
Gyproc jointing materials produce durable joint reinforcement and a smooth,
continuous, crack-resistant surface ready for priming and final decoration

All our systems are covered by SpecSure® when using

genuine British Gypsum and Saint-Gobain Isover products
Finishes
C08
 Jointing
Jointing
Gyproc jointing materials seal the lining, a
prerequisite if the building element is to achieve
specified levels of fire resistance and sound
insulation. The materials can be applied either
manually using hand tools, or mechanically,
using mechanical jointing tools.

A number of jointing specifications are available

to suit the board type, method of application,
and site preference.

Key benefits
— Produces a seamless surface ready
for decoration
— Choice of jointing materials to suit user
preference, including ready-mixed or dry
powder options
— For larger areas these products can be
mechanically applied

Finishes
C08

Additional information
The jointing process normally involves three application stages.
If you are looking for a single application process.
Refer to C08. S02. P02 – Plaster skimming

0115 945 6123 bgtechnical.enquiries@bpb.com C08. S03. P02

 Jointing performance
Jointing

Preparation – key stages

To achieve the objective of a smooth, continuous, crack-free surface,
– Boards should be securely fixed, with no steps between
tapered edge plasterboard and Gyproc Joint Tape should be used
adjacent boards
when jointing. The tapered edge boards provide a recess for the
– The correct fixings must be used and properly located with their joint treatment, allowing a flat, finished surface. At board joints,
heads just below the liner surface. Any protruding screw heads where cut edges or square edge boards occur, the joint treatment
should be driven home using a hand screwdriver, prior to is inevitably raised above the board surface and is more difficult
spotting and jointing to conceal. In this situation the secondary filling stage is omitted,
and joint treatment is feathered-out into the field of the board to
– Gaps between boards greater than 3mm should be pre-filled,
conceal the joint as much as possible.
prior to taping with Gyproc Joint Tape

– Jointing materials should only be applied to backgrounds Joint treatment has two essential components; the reinforcement
where the minimum temperature will remain at 2°C (5°C for and the jointing compound. Reinforcement is necessary where
Gyproc EasiFill range) or above until dry there is relative movement of adjacent boards. In practice, some
movement is normal and Gyproc Joint Tape is recommended for the
Joint reinforcement best crack resistance.
In a plasterboard system, suitable joint reinforcement is essential
to minimise the risk of cracking along the joints, which could then
appear through the decoration.

Table 1 – Combinations and coverage data (kg / 100 linear metres)

Taping coat 1st finish coat 2nd finish coat 3rd finish coat
Jointing system Reinforcement
coverage kg / 100 linear metres
Flat joint Paper tape 12 6 6 -
(tapered edge - hand applied) 12 6 6 -
12 6 6 -

9 5 - -

Flat joint Paper tape 6 6 6 3

(tapered edge - mechanical)

Flat joint Paper tape 3 12 - -

(square edge)

External angle Corner tape 22 9 9 -

22 9 9 -

18 9 - -
Finishes

Metal bead 34 9 9 -

34 9 9 -

28 12 - -
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Internal angle Paper tape 12 8 8 -

12 8 8 -

12 8 8 -

10 5 - -

Key:
Gyproc Joint Filler Gyproc QuickSand Joint Cement Gyproc EasiFill

These quantities should be used as a guide only - quantities used will vary depending on tools used and accuracy of board alignment. Material used for
pre-filling gaps, repairing damage, etc is not included. An allowance for waste and material sanded away should be added as appropriate.

When using a ready-mix joint cement in place of powder, assume that 1 litre is equivalent to 0.85kg of powder joint cement.

External angle reinforcements should be fixed using a setting product - Gyproc Joint Filler or Gyproc EasiFill, except
Glasroc F multiboard and Glasroc F firecase.

C08. S03. P03 british-gypsum.com

Jointing performance (continued)

Jointing
Jointing – Rigidur h A third coat of Gyproc Joint Cement may be necessary, applied as
the second coat and slightly wider e.g. where boards are fixed with
When jointing Rigidur h by hand, use Gyproc EasiFill. The joints can
any steps, gaps or minor damage. When the final application has
be finished using mechanical jointing tool if desired. When jointing
dried and been sanded smooth, the surface is ready for decoration.
using the mechanical jointing tool, use Gyproc ProMix lite for the
best results. Gyproc QuickSand Joint Cement can be considered, but
Jointing – Glasroc H tilebacker
care needs to be taken to mix to the correct consistency.
Gyproc jointing materials are not generally recommended for use
Due to the nature of the joints on tapered edge Rigidur h, the on Glasroc H tilebacker. However, where designs include part tiled
Gyproc Joint Tape will need to be bedded down with a 50mm wide areas in low-moisture environments and aesthetics is not part of
taping knife to flatten the tape back onto the joint. Take care to the design, the joints can be re-inforced using Gyproc Joint Tape and
leave sufficient jointing material behind the tape to ensure good Gyproc Joint Filler.
adhesion. The joints can then be finished using the mechanical
jointing tool. Decoration

Painting
Jointing – Gyptone boards
After the jointing treatment has set and dried, and any final
Gyproc Joint Tape is bedded in Gyproc EasiFill to all four tapered sanding is complete, the surface should be dusted down and
edges and bulk-filled. When set, a finish coat of Gyproc QuickSand Gyproc Drywall Primer applied by brush, roller or suitable spray
Joint Cement is applied to all joints by hand or using a mechanical equipment. Gyptone or Rigitone perforated boards are not suitable
jointing tool. to receive spray applied primer. When roller applying Gyproc Drywall
Primer and paint finishes, care should be taken to ensure primer or
Care must be taken not to fill the perforations in the board and paint does not fill the perforations in the board, as this will impair
thereby impair the sound absorption performance. acoustic performance.

Jointing – Rigitone boards The primer evens out differences in surface texture and absorption
Mix the Rigitone Vario 60 Jointing Material with clean water between the board and jointed areas, to create the ideal surface
(approximately 3 parts water to 1 part filler) and fill a to receive final decoration. The early application of primer helps to
Rigitone Installation Kit with the mixture. Apply the filler to the prevent plasterboards from yellowing. Where surface vapour control
joints ensuring the joints are completely full, including nominal is a requirement the surface should be given two coats of
5mm-10mm gaps around the perimeter. Failure to fully fill the joint Gyproc Drywall Sealer. Most paints and papers can be applied after
can cause the joint to crack. Gyproc Drywall Primer or Gyproc Drywall Sealer has dried.

The filler should be left to dry for a minimum of 50 minutes before Gyproc Drywall Sealer should not be applied to Glasroc F multiboard,
striking the excess material away from the joint. Allow all the Glasroc F firecase or Rigidur h.
joints to dry for a minimum of 24 hours before finishing. Mask the
Wall coverings
perforations either side of the joints using wet paper tape. Fill the
If Gyproc Drywall Sealer is applied in a single coat, steam-stripping
joints and screw heads using Gyproc EasiFill, let the material project
at a later date becomes a simple operation. Decoration should
slightly from the boards to allow for shrinkage and sanding.

Finishes
follow with the minimum of delay. Most paints and papers can
To finish a joint where the room layout or design detail has required be applied after Gyproc Drywall Primer or Gyproc Drywall Sealer
a Rigitone board to be cut, fill all holes falling on the joint using has dried.
Rigitone Vario 60 Jointing Material and finish with a layer of
Gyproc EasiFill. Once a joint has been filled, remove the masking
Vinyl or other low-permeability wall coverings restrict drying of
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water-based adhesives. This combination should, therefore, not be
paper tape immediately. Lightly sand once dry.
applied direct to plasterboard treated with Gyproc Drywall Sealer.
Jointing – Glasroc F multiboard and Glasroc F firecase The use of specialist adhesives, for example with cloth backed or
solid vinyl wall covering, may result in damage to the plasterboard
Gyproc QuickSand Joint Cement is trowel applied to the joint and surface during subsequent stripping. If the use of such adhesives is
Gyproc Joint Tape bedded in. Alternatively Thistle ProTape FT50 is necessary, consideration should be given to cross-lining with lining
applied over the joint and a coat of Gyproc Joint Cement is trowel paper before applying the wall covering.
applied. The joint treatment is allowed to dry and lightly sanded
to remove any high spots. For internal angles the use of Gyproc As with all wall and ceiling areas, high sheen gloss finishes will
QuickSand Joint Tape is preferable to Thistle ProTape FT50. Its crease highlight variations of the surface, particularly with shallow angle
makes it easier to achieve a neat, straight joint with higher cracking lighting. The use of low sheen or matt finishes minimises this risk.
resistance.
For the correct specification in respect of any applied decorative
For external angles, Gyproc Corner Tape is used, bedded in Gyproc material, reference should be made to the manufacturer of that
QuickSand Joint Cement. A second coat of Gyproc QuickSand Joint material.
Cement is trowel applied and feathered out to about 200mm width
on each side on the joint. The joint treatment is allowed to dry and
lightly sanded. Gyproc Metal Drywall Angle Bead can be used but
Gyproc Joint Filler must be used on the first two coats.

0115 945 6123 bgtechnical.enquiries@bpb.com C08. S03. P04

 Jointing design
Jointing

Air-drying and setting type compounds Hand versus mechanical application

Setting-only compounds - e.g. Gyproc Joint Filler jointing Hand application provides a versatile option ideal for smaller
compounds used at the joint filling stage(s) are usually setting areas or where the jointing programme cannot be completed in
products. Hardening is not dependent upon atmospheric humidity. a single operation. Mechanical jointing tools provide consistent
Fillers that only harden by setting are hand applied and have low high speed jointing, which is cost effective where large runs of
shrinkage. When a setting-only product is applied as a thin layer it lining are involved. Mechanical jointing is available in full or part
may ‘dry-out’ before it has properly hardened. Setting-only materials sets. The full set, for use with an air-drying product, includes tools
are therefore unsuitable for the finishing application, but are that automatically bed tape and apply jointing compound at the
particularly suitable for bead fixing. same time.

A setting material should never be applied on top of an air-drying Part sets include easy clean finishing boxes that can be used with
material. Air-drying materials shrink as they dry, which may cause a Gyproc EasiFill:
joint to delaminate under such circumstances. — Ideal for moderate to large areas of drylining
— Ideal where a number of areas can be finished in sequence
Air-drying compounds – e.g. Gyproc joint cements
— Increased productivity
Jointing compounds used for the finishing application are
applied more thinly than bulk-fillers and so must have air-drying — Consistent high standards of finish
characteristics in order to harden sufficiently at feathered edges. — Easy to use
Air-drying materials can be applied by hand or machine using
mechanical jointing tools. Air-drying materials may also be used as Coverage
fillers, but greater time needs to be allowed to permit the material
Coverage depends on the grade of jointing compound chosen.
to dry in depth, particularly in cold or humid conditions.
Refer to table 1 for guidance.
Gyproc EasiFill
Repairs to plasterboard
These products combine the characteristics of both an air-drying
and a setting material. Gyproc EasiFill can be applied by hand or Refer to the current British Gypsum Site Book, available to
machine using mechanical jointing tools. Gyproc EasiFill products download from british-gypsum.com
have shrinkage that is lower than conventional joint fillers and
considerably lower than air-drying joint cements, meaning they can
also be used with absolute confidence in a two stage application.

Table 2 – Product options

Product Drying type Fill stage(s) Finish stage(s) Working time (min) Setting time (min)
Finishes

Gyproc Joint Filler Setting Preferred Unsuitable 60 120

Gyproc QuickSand Joint Cement Air-drying Can be used Preferred - -
Gyproc Ready Mix Joint Cement Air-drying Can be used Preferred - -
Gyproc ProMix lite Air-drying Can be used Preferred - -
C08

Gyproc EasiFill Setting / air-drying Preferred Preferred 60 140

Table 3 – Coverage data

Product Pack size Typical coverage

Gyproc Drywall Primer 10 litre tubs 150m²/10 litre tub (1 coat)

Gyproc Drywall Sealer 10 litre tubs 70m²/10 litre tub (2 coats)

150m²/10 litre tub (1 coat)

C08. S03. P05 british-gypsum.com

Jointing components

Jointing
Plasterboard accessories ( Refer to section C10. S05. P02 for details)

Gyproc Joint Filler Gyproc QuickSand Joint Cement

A gypsum based setting material for bulk and An air-drying powdered jointing material, designed
secondary filling of plasterboard joints designed for the finishing stage over Gyproc Joint Filler.
to be used in conjunction with Gyproc QuickSand
Joint Cement for optimum finish.

Gyproc EasiFill Gyproc Ready Mix Cement

A combined setting and air-drying, gypsum based An air-drying, ready-mixed jointing material
material for both bulk filling and finishing of joints. designed for the finishing stage over
High coverage rates and minimal drying shrinkage Gyproc Joint Filler.
allows application in 2 coats.

Gyproc ProMix lite Joint Cement

A ready-mixed jointing product, which is
lightweight and has low shrinkage. Compatible
with the majority of airless spraying equipment.

Refer to table 1 for guidance on Gyproc jointing compounds.

Gyproc Joint Tape Gyproc Corner Tape

A paper tape designed for reinforcement of flat A paper tape bonded to two corrosion resistant
joints or internal angles. steel strips.

Gyproc Habito Corners Gyproc AquaBead

A high strength, tapered co-polymer core offers An easy to apply, water, activated adhesive corner
strong and uniform surface bonding for internal bead, for reinforcing external 90°C angles in taped
and external angles in plasterboard constructions. and jointed plasterboard constructions.

Gyproc Drywall Metal Angle Bead Gyproc Drywall Archbead

Perforated, galvanised steel angle bead, designed as Extruded uPVC bead. This special design allows for
part of the jointing systems. curving around arches.

Gyproc Drywall Metal Edge Bead Gyproc Drywall Plastic Edge Bead
Galvanised steel channel. Asymmetric profile Extruded uPVC channel. Asymmetric profile
with one perforated leg and pre-formed arris to with one perforated leg and pre-formed arris to
accommodate jointing material. accommodate jointing material.

Finishes
Finishing products ( Refer to section C10. S06. P02 for details)

Thistle ProTape FT50 Thistle ProTape FT100

Self-adhesive 48mm wide glass fibre mesh tape. Self-adhesive 100mm wide glass fibre mesh tape. C08

Gyproc Drywall Primer Gyproc Drywall Sealer

A general purpose plasterboard primer, providing A specially formulated sealer providing vapour
an ideal surface for decoration with most paints control and a superior finish. Suitable for
and wall coverings. decoration with most paints and wall coverings.

Rigitone Large Jointing Kit

Jointing kit for application of Vario 60 into
Rigitone boards.
Additional information
For further details on system components:
Refer to C10. S05. P02 – Plasterboard
accessories.
Refer to C10. S07. P02 – Decorative
products.

0115 945 6123 bgtechnical.enquiries@bpb.com C08. S03. P06

 Jointing installation overview
Jointing

Scan the image with this frame

for more information and
videos related to this system
This is intended to be a basic description of how the system is built. Or visit gyp.sm/b/le
For detailed installation guidance refer to the British Gypsum Site Book.

Cleaning equipment

All equipment should be thoroughly cleaned before and after use. Small residual amounts of set or part-set material will accelerate the
hardening of freshly mixed setting jointing compounds, and residues of compounds left in a wet state will be subject to microbial attack.

Hand Jointing For external corners Gyproc Corner Tapes are Two or three further applications of
Gyproc Joint Tape is bedded into the bedded with a Gyproc setting compound. jointing compound are trowel applied,
appropriate Gyproc jointing compound to each feathered out beyond the previous
all board joints and internal corners. application. An equal number of
applications are made to spot screw heads.
Once dried, the joint treatment is sanded as
necessary to achieve a smooth surface.

Gyproc Drywall Primer or Gyproc Drywall Machine Jointing

Finishes

Sealer is applied to the entire board surface

Mechanical jointing tools can be used as
and jointed areas, to prepare the lining for
an alternative to hand jointing, to provide
final decorative treatment.
a fast, consistent finish using 175mm,
250mm and 300mm finishing boxes as
C08

appropriate.

Gyproc Drywall Primer or Gyproc Drywall

Sealer is then applied to the entire board
surface and jointed areas, to prepare the
lining for final decorative treatment.

Additional information
For full installation details, refer to the
When jointing Glasroc F multiboard and Glasroc F firecase, the jointing British Gypsum Site Book, available to
works are carried out as described above. However the only appropriate download from british-gypsum.com
jointing compound is Gyproc QuickSand Joint Cement. Jointing and finishing
is not a requirement to meet the fire protection levels for the FireCase system.

C08. S03. P07 british-gypsum.com

 Jointing
Finishes
C08

0115 945 6123 bgtechnical.enquiries@bpb.com C08. S03. P08

Tiling

Tiling
In rooms subject to high or intermittent moisture conditions, the range of
boards available for tiling offers flexibility of design and peace of mind when
installed in both wall linings, lightweight partition system and floor systems
All our systems are covered by SpecSure® when using
genuine British Gypsum and Saint-Gobain Isover products
Finishes
C08
 Tiling
Tiling
Specifically designed for direct tiling
applications, Glasroc H tilebacker is the ideal
substrate for tiling in environments subjected
to moisture, providing protection for shower
enclosures, bathrooms, swimming pool halls
and adjacent areas.

For wall areas where intermittent moisture

conditions are more common, including kitchens
and bathrooms, Gyproc moisture resistant grade
boards are suitable.

Key benefits
— Glasroc H tilebacker has been designed for use
in high moisture applications
— Glasroc H tilebacker will hold tiling systems up
to 32kg/m² on walls and 50kg/m² on floors
— Gyproc moisture resistant grade boards are
suitable for use in walls in intermittent
moisture conditions

Finishes
C08

You may also be interested in...

If you require acoustic insulation or fire resistance performance, GypWall classic
partition systems, incorporating Glasroc H tilebacker are available.
Refer to C04. S02. P02 – GypWall classic

0115 945 6123 bgtechnical.enquiries@bpb.com C08. S04. P02

 Tiling performance
Tiling

Table 1 – Tiling on partition systems

Partition system Board type3 Stud Additional

centres support / comments
mm

GypWall classic, 1 x 12.5mm Glasroc H tilebacker each side 600 -

Inner layer 12.5mm (minimum) Gyproc 600 -

plasterboard and outer layer 1 x 12.5 Glasroc
H tilebacker each side

1 x 15mm Gyproc plasterboard each side 400 If using Gypframe 146mm studs, they can be located
or at 600mm centres to full partition height with extra
2 x 12.5mm (minimum) Gyproc studs to give 300mm centres up to tiling height
plasterboard each side

GypWall robust, GypWall extreme 1 x 15mm Gyproc plasterboard (or 15mm 400 If using Gypframe 146mm studs, they can be located
/ Hybrid Rigidur h where appropriate) each side at 600mm centres to full partition height with extra
or studs to give 300mm centres up to tiling height
2 x 12.5mm (minimum) Gyproc
plasterboard each side (including outer
layer Rigidur h where appropriate)

GypWall quiet, GypWall quiet iwl Inner layer 12.5mm (minimum) Gyproc 600 -
and GypWall audio plasterboard and outer layer 1 x 12.5
Glasroc H tilebacker each side

2 x 12.5mm (minimum) Gyproc 400 -

plasterboard each side

GypWall quiet sf Tiles over double layer lining board fixed on 6001 Horizontal Gypframe RB1 Resilient Bar
Gypframe RB1 Resilient Bar side at 400mm vertical centres

Tiles over double layer lining board fixed to 4001 -

studs (non Gypframe RB1 Resilient Bar side)

GypWall staggered 1 x 15mm Gyproc SoundBloc each side 400 -

2 x 12.5mm (minimum) Gyproc SoundBloc
each side

GypWall rapid dB Plus 1 x 15mm Gyproc SoundBloc rapid each side 450 Or studs at 900mm centres with
noggings at mid-height

Timber stud partitions and 12.5mm Gyproc plasterboard each side 400 Timber noggings 50 x 38mm minimum
separating walls (single or double layer) at 600mm vertical centres

15mm Gyproc plasterboard each side 600 Timber noggings 50 x 38mm minimum
(single or double layer) at 600mm vertical centres
Finishes

ShaftWall 1 x 15mm Gyproc FireLine 300 -

2 x 12.5mm (minimum) Gyproc FireLine 600 Gyproc Sealant applied in a full height continuous
vertical bead midway between studs
C08

FireWall 2 x 15mm Gyproc plasterboard2 400 -

1
If the tiling side is unknown, or tiling is to both sides, the studs should be at 400mm centres and the horizontal Gypframe RB1 Resilient Bars at 400mm
vertical centres.
2
FireWall specifications incorporating outer layer 6mm Glasroc F multiboard are suitable for tiling.
3
Moisture Resistant variant should be used unless in a totally dry area. Also refer to table 3.

An outer layer of Glasroc H tilebacker 12.5mm can be added if appropriate to the system.

Reducing the centres of the metal studs within GypWall partition systems can have a detrimental effect on the sound insulation performance of the
system. Refer to C02. S01. P30 – Robustness.

The recommendations given are based on experience and laboratory / site testing. In practice, performance will be dependent on factors such as
workmanship and site conditions.

C08. S04. P03 british-gypsum.com

Tiling performance (continued)

Tiling
Table 2 – Tiling on wall lining systems
Wall lining system Board type3 Support Additional
centres support / comments
mm
DriLyner basic 2 12.5mm Glasroc H tilebacker 600 Horizontal dabs of Gyproc DriWall Adhesive
Dabs of at mid-storey height
Gyproc DriWall Adhesive
Nine British Gypsum Nailable Plugs through
in rows
each board 1

9.5mm Gyproc WallBoard (1200mm wide) 400 For 9.5mm Gyproc WallBoard (900mm wide)
support centres can be at 450mm
Horizontal dabs of Gyproc DriWall Adhesive
at mid-storey height

12.5mm or 15mm Gyproc plasterboard 600 Horizontal dabs of Gyproc DriWall Adhesive
at mid-storey height

DriLyner ti 2 Gyproc ThermaLine laminates 600 Horizontal dabs of Gyproc DriWall Adhesive
Dabs of at mid-storey height
Gyproc DriWall Adhesive Nine British Gypsum Nailable Plugs through
in rows each board

DriLyner mf 2 12.5mm Glasroc H tilebacker 400 British Gypsum Drywall Screw at

Metal furring on dabs of 12.5mm or 15mm Gyproc plasterboard 300mm centres into each MF support
adhesive in rows Gyproc ThermaLine laminates

DriLyner rf 2 12.5mm Glasroc H tilebacker 300 Nine British Gypsum Nailable Plugs through
Blobs of Gyproc ThermaLine laminates each board1
Gyproc Sealant
at nominal 300mm
centres

GypLyner universal 12.5mm Glasroc H tilebacker 400 Fixing brackets at 600mm vertical centres
12.5mm or 15mm Gyproc plasterboard
(single or double layer)
Gyproc ThermaLine laminates

GypLyner iwl 1 x 12.5mm Glasroc H tilebacker 600 Mid-height support from

background structure to framework

1 x 15mm Gyproc plasterboard 400 Mid-height support from

or Gyproc ThermaLine laminates background structure to framework

2 x 12.5mm (minimum) Gyproc 400 -

plasterboard / Gyproc ThermaLine
laminates

Finishes
Timber battens 12.5mm Glasroc H tilebacker 400 Horizontal battens at head, base and intermediate
12.5mm or 15mm Gyproc plasterboard positions not exceeding 1200mm centres
(single or double layer)
Gyproc ThermaLine laminates

1
900mm x 1200mm Glasroc H tilebacker boards require three British Gypsum Nailable Plugs per board.
C08
2
These lining systems should be left to stand for seven days before tiling begins.
3
Moisture Resistant variant should be used unless in a totally dry area. Also refer to table 3.

The recommendations given are based on experience and laboratory / site testing. In practice, performance will be dependent on factors such as
workmanship and site conditions.

0115 945 6123 bgtechnical.enquiries@bpb.com C08. S04. P04

 Tiling design
Tiling

Choosing tiling boards

When designing wall linings and lightweight partition systems, the following guidance details the recommended board, application and
details to use.

Table 3 – Board lining requirements

Level of moisture Typical wall application Board

Low Residential Gyproc Moisture Resistant, mr variants,

Glasroc F multiboard and Rigidur h
Splash backs
Kitchens
Toilets

Medium Residential Gyproc Moisture Resistant and mr variants,

Bathrooms Glasroc H tilebacker,

Glasroc F multiboard and Rigidur h

High Residential Glasroc H tilebacker

Shower enclosure walls

Commercial Glasroc H tilebacker

Kitchens
Changing rooms

Extreme Commercial Glasroc H tilebacker1

Communal shower walls

Swimming pool hall walls

1
In extreme moisture environments, Glasroc H tilebacker should be treated with a suitable tanking system.

Guidance for high to extreme moisture environments

Planning - key factors Perimeter and junction sealing

Glasroc H tilebacker is recommended for use as a tile backing Designers must give consideration to the precautions necessary
substrate in environments subjected to moisture. The board can at junctions to ensure that moisture is not allowed to penetrate
Finishes

be used on both wall linings, lightweight partition systems and or collect. Cut edges of boards must be appropriately sealed and
existing timber floors. Glasroc H tilebacker is not a structural grade waterproofed at abutments.
flooring board and cannot be used as a walking surface.
Waterproof sealant should be used around baths or shower trays,
Where the board is installed using the DriLyner systems, ensure the between the wall surface and the floor at the base of partition or
C08

Gyproc DriWall Adhesive has set seven days before tiles are applied wall lining, to prevent any possible moisture being absorbed by the
to the board surface. The tolerance on the finished tile surface board core.
quoted in BS 5385: Part 1, i.e. 3mm under a 2m straight edge with
thin-bed adhesives, is such that it will reflect very accurately the
Tanking systems
standard of the background surface.
In extreme moisture environments, the exposed surfaces of
Moisture resistance Glasroc H tilebacker should be treated with a suitable tanking system.

Glasroc H tilebacker should not be exposed to running water. Care

Continuity of linings
should be taken not to over tighten screws when fixing boards and
all screw heads should be fully filled with adhesive. All partitions and wall linings should be complete. There should be
no omissions to board linings, e.g. behind baths.
In areas of high and extreme moisture and humidity, extra care
should be given to detailing at junctions, perimeter sealing and
tiling.

C08. S04. P05 british-gypsum.com

Tiling design (continued)

Tiling
Tiling
Waterproof sealant should be used around baths or shower trays,
Before tiling commences, fully fill all edge joints included in
between the wall surface and the floor at the base of partition or
the tiling area with tile adhesive. Install tiles following the
wall lining, to prevent any possible moisture being absorbed by the
manufacturer’s guidance, using a waterproof tile adhesive. Tiles can
board core.
be applied directly to the pre-primed surface of Glasroc H tilebacker,
ensuring the board is dust free prior to tiling. Ensure tiles are sealed
Once boards are installed, the perimeter of the wall, e.g. base, head
using a waterproof grout and sealant at perimeters.
and wall abutments, should be sealed with a waterproof sealant.

Timber stud external walls or partitions

Continuity of linings
Where tiling is specified, designers should ensure that the timber
is of sufficient dimensions to give a stable base for the additional All partitions and wall linings should be complete. There should be
loading. no omissions to board linings, e.g. behind baths.

The moisture resistance of the timber should be within the limits Timber stud external walls or partitions
given in BS 5268: Structural use of timber - Part 2. Where tiling is specified, designers should ensure that the timber
is of sufficient dimensions to give a stable base for the additional
Underfloor heating systems loading. The moisture resistance of the timber should be within the
Glasroc H tilebacker is suitable for use in conjunction with electric limits given in BS 5268: Structural use of timber - Part 2.
underfloor heating systems. Glasroc H tilebacker is installed as per
standard installation, electric underfloor heating systems should Tiling directly onto plasterboard
be installed in accordance with manufacturers installation details. Before tiling commences, joints and taper recesses included within
The operating temperature of the heating system should not the tiling area should be filled with tile adhesive.
exceed 40°C.
Only boards that are dimensionally stable in changing moisture
Guidance for low to medium moisture conditions, such as mr grade and Glasroc H tilebacker boards should
be used when tiling onto surfaces that will be subject to occasional
environments
wetting (e.g. domestic sinks and baths).
Planning – key factors

Glasroc H tilebacker, Gyproc moisture resistant grade boards, When tiling onto surfaces in high moisture areas (but are not
Glasroc F multiboard or Rigidur h are recommended for intermittent immersed in water) e.g. communal changing rooms, showers and
moisture applications, including splashbacks. The tolerance on the pool hall areas, Glasroc H tilebacker should be used.
finished tile surface quoted in BS 5385: Part 1, i.e. 3mm under a 2m
straight edge with thin-bed adhesives, is such that it will reflect very Where designs include part-tiled areas, e.g. low moisture
accurately the standard of the background surface. environments, apply a layer of Thistle Bond-It when using moisture
resistant variant boards prior to the board being plaster skimmed
above the line of the tiles. Alternatively skim with Thistle DuraFinish
on moisture resistant grade boards.

Finishes
Important information Refer to C08. S02. P06 – Plaster skimming

Two coats of Gyproc Drywall Sealer

Tiling onto plastered surfaces
applied to the face of standard grade
plasterboards, with the edges adequately Skimming to plasterboards (including Gyproc moisture resistant C08
protected from moisture may also be boards) which are to receive tiles, is not recommended. Tiles up to
suitable to receive a tile finish. The 20kg/m² (including adhesive and grout) can be applied directly to
application of Gyproc Drywall Sealer Thistle finish plasters, except where the system includes a bonding
provides surface water absorption agent. In this situation the total weight of tiles and plaster applied
resistance only, and does not meet the over a bonding agent is limited to 20kg/m², therefore consideration
performance requirements for moisture should be given to tiling directly to the background. If plastering
resistant grade boards as defined in is to provide a background for tiles, avoid polishing the surface.
BS EN 520, type H1. Polished plaster surfaces should be roughened and a suitable
primer used. Consult the tile adhesive manufacturer for guidance.

Gypsum undercoats and finish coats are designed to work together

Perimeter and junction sealing to achieve full strength and therefore tiles should not be applied
Designers must give consideration to the precautions necessary directly to Thistle undercoats, with the exception of Thistle DriCoat.
at junctions to ensure that moisture is not allowed to penetrate
or collect. Cut edges of boards must be appropriately Tiles should not be applied until the background and plaster are dry.
sealed / waterproofed at abutments.

0115 945 6123 bgtechnical.enquiries@bpb.com C08. S04. P06

 Tiling design (continued)
Tiling

Scan the image with this frame

for more information and
videos related to this system
Or visit gyp.sm/b/lk

Table 4 – Tiling weight limitations on plaster backgrounds

Background finish Total weight supported

Thistle plaster 20kg/m²

including adhesive, grout and tiles

Bonding agent plus 20kg/m²

Thistle plaster including plaster, adhesive, grout
and tiles

Glasroc H tilebacker on existing timber floors

Glasroc H tilebacker is designed as a tiling substrate for use on an

existing timber floor, it is not suitable as a walking surface and
is not a structural flooring grade board. On existing timber floors
ensure the floor is structurally sound and is not subject to excessive
movement or flexing as this could cause a tiled floor to crack. Place
a bed of tile adhesive directly onto the floor surface. Bed the board
into the tile adhesive to create a level surface. Make sure the yellow
pre-primed finish faces outwards for tiling. Boards are fixed through
to timber sub floor using British Gypsum Drywall Screws at 200mm
centres. The length of fixing used should be selected to avoid
penetrating through the floor surface into the cavity to prevent
damage to any services that may be within the floor cavity.
Finishes
C08

C08. S04. P07 british-gypsum.com

Tiling components

Tiling
Board products ( Refer to section C10. S03. P02 for details)

Glasroc H tilebacker Glasroc F multiboard

Non-combustible glass-reinforced gypsum board Non-combustible glass-reinforced gypsum board.
with a water resistant pre-primed acrylic coating
to receive tiling.

Gyproc FireLine mr Rigidur h

Plasterboard with additional additives to increase Gypsum fibre board with additives for rigidity,
fire and moisture performance. durability and mechanical strength.

Gyproc SoundBloc rapid Gyproc Moisture Resistant

Gypsum plasterboard in narrow width with a Gypsum plasterboard with moisture resistant
high density core for enhanced sound insulation additives in the core.
performance.

Gyproc SoundBloc rapid mr Gyproc DuraLine mr

Gypsum plasterboard in narrow width with Gypsum plasterboard with fire and moisture
moisture resistant additives and a high density core resistant additives and a high density core for
for enhanced sound insulation performance. enhanced sound insulation and impact resistance
performance.

Gyproc SoundBloc mr Glasroc F firecase

Gypsum plasterboard with moisture resistant High performance, non-combustible glass
additives and a high density core for enhanced reinforced plasterboard giving up to 120 minutes
sound insulation performance. fire protection.

Fixing products ( Refer to section C10. S04. P02 for details)

Nailable Plugs
Secondary mechanical fixing for Gyproc laminates
in the DriLyner tl, si and rf systems on masonry
walls and for increased stability when tiling.

Finishes
Plasterboard accessories ( Refer to section C10. S05. P02 for details)

Gyproc Drywall Sealer Tiles (by others)

A specially formulated sealer providing vapour Available in: 32kg/m2 (maximum including
control and a superior finish. Suitable for decoration adhesive and grout)
C08
with most paints and wall coverings.

Waterproof tile adhesive (by others) Waterproof sealant (by others)

Additional information
For full installation details, refer to the
British Gypsum Site Book, available to
download from british-gypsum.com

0115 945 6123 bgtechnical.enquiries@bpb.com C08. S04. P08

Decorative effects

Decorative effects
A wide variety of decorative effects can be achieved quickly and simply
using Gyproc accessories

All our systems are covered by SpecSure® when using

genuine British Gypsum and Saint-Gobain Isover products
Finishes
C08
 Decorative effects
Decorative effects
Gyproc decorative accessories are used to
enhance walls and ceilings, and to relieve flat
runs of lining, joints and angles.

Key benefits
— Cove and Cornice profiles can be used
Gyproc Cornice Strips to enhance wall and
ceiling angles
— Easy installation
— Cost effective solution where coving is desirable
— An interesting and imaginative aesthetic
appearance, creating shadow gaps and recessed
skirtings, can be created through the use of
Gyproc Styletrims
— Gyproc Cove and Gyproc Cornice can assist in
improving airtightness

Finishes
C08

0844 800 1991 bgtechnical.enquiries@bpb.com C08. S05. P02

 Decorative effects performance
Decorative effects

Sound insulation

Airtightness is essential for optimum sound insulation of

plasterboard building elements. Gyproc Cove and Cornice can assist
in ensuring that linings meet their stated sound performance levels,
since joints will be rendered imperforate during the bonding and
jointing / making good process.

Maintaining performance levels

If plasterboard is removed in order to facilitate the installation

of Gyproc Styletrims, fire resistance and sound insulation
performances will be affected. In most situations it is possible to
maintain performance levels by installing additional plasterboard
layers over and above the normal lining specification. The lining
should be extended sufficiently to provide continuous support.

Decorative effects design

Backgrounds

Gyproc Cove and Cornice can be installed to clean, dry and sound
backgrounds using Gyproc Cove Adhesive or Gyproc EasiFill. Where
the wall or ceiling has severe irregularities, the profiles can be
mechanically fixed using non-rusting screws into plugs. Gaps
along the wall or ceiling edge of the profile can be filled with
Gyproc Cove Adhesive.

Gyproc Styletrims can be used in conjunction with most

British Gypsum wall and ceiling lining systems. Framing centres
should not exceed 600mm. Vertical runs of Gyproc Styletrims and all
Styletrim joints should be supported by framing members. Where
these features occur between normal framing centres, additional
members will need to be incorporated. Setting out should therefore
be planned before commencing fixing, both to reduce wastage and
to allow the position of any extra framing to be determined.
Gyproc Styletrim joints should always be backed by plasterboard,
and should never be installed so as to give direct contact with
Finishes

framing members. The Gyproc Styletrim profiles are used in

conjunction with 12.5mm Gyproc plasterboard linings.
C08

C08. S05. P03 british-gypsum.com

Decorative effects components

Decorative effects
Fixing products ( Refer to section C10. S04. P02 for details)

British Gypsum Drywall Screws British Gypsum Collated Drywall Screws

Corrosion resistant self-tapping steel screws. Corrosion resistant self-tapping steel screws.
Alternative method for pre-fixing Gyproc Styletrims Alternative method for pre-fixing Gyproc Styletrims
through plasterboard into metal framing less than through plasterboard into metal framing less than
0.8mm thick. 0.8mm thick.

Decorative products ( Refer to section C10. S07. P02 for details)

Gyproc Cove Gyproc Cornice Battens

Gypsum plasterboard moulding in traditional Pre-cut strips of glass reinforced gypsum board.
‘C’ profile. To be used in conjunction with Gyproc Cove or
Gyproc Cornice

Gyproc Cornice Gyproc Styletrims

Gypsum plasterboard moulding in classic ‘S’ profile. Primed, pre-formed aluminium trims for design
effects with plasterboard, such as shadow gaps.

Gyproc Cornice Strips Gyproc Cove Adhesive

Pre-cut strips of glass reinforced gypsum board. Gypsum based adhesive for fixing Gyproc Cove
To be used in conjunction with Gyproc Cover or and Cornice.
Gyproc Cornice.

Plasterboard accessories ( Refer to section C10. S05. P02 for details)

Gyproc Joint Tape Gyproc Corner Tape

A paper tape designed for reinforcement of flat A paper tape bonded to two corrosion resistant
joints or internal angles. steel strips.

Gyproc EasiFill Gyproc Sealant

Alternative method for fixing and finishing Gyproc Alternative method for pre-fixing Gyproc
Cove and Gyproc Cornice. Styletrims.

Gyproc Habito Corners Gyproc AquaBead

Finishes
A high strength, tapered co-polymer core offers An easy to apply, water, activated adhesive corner
strong and uniform surface bonding for internal bead, for reinforcing external 90°C angles in taped
and external angles in plasterboard constructions. and jointed plasterboard constructions.

C08
Finishing products ( Refer to section C10. S06. P02 for details)

Thistle ProTape FT50 Thistle ProTape FT100

Self-adhesive 48mm wide glass fibre mesh tape. Self-adhesive 100mm wide glass fibre mesh tape.

Gyproc Drywall Primer

A general purpose plasterboard primer, providing
an ideal surface for decoration with most paints
and wall coverings.

A wide range of cove and accessories, distinctive plaster mouldings and textures are available from Artex.
Refer to artexltd.com for further information.

0844 800 1991 bgtechnical.enquiries@bpb.com C08. S05. P04

 Decorative effects installation overview
Decorative effects

Scan the image with this frame

for more information and
videos related to this system
This is intended to be a basic description of how the system is built. Or visit gyp.sm/b/lg
For detailed installation guidance refer to the British Gypsum Site Book.

Cove and Cornice Nails are lightly applied to provide Gyproc Cornice Battens can be used to
temporary support to the profile until the install Gyproc Cornice 135 over existing old
Profiles are cut to length using a fine-tooth
adhesive has set. Once set, temporary cove profiles. Gyproc Cornice Strips can also
saw and mitred using a suitable mitre block.
nails are removed and any excess adhesive be used to add extra steps prior to installing
Gyproc Cove Adhesive or Gyproc EasiFill is
is used to make good the mitres and any the Gyproc Cove.
evenly applied to both surfaces that will be
joints. After installation, surfaces are
in contact with the wall and ceiling.
treated with Gyproc Drywall Primer prior to
applying the decorative paint finish.

Additional information
For full installation details, refer to the
British Gypsum Site Book, available to
download from british-gypsum.com

Styletrims

The framing and plasterboard linings are

installed first. Where backgrounds are
sufficiently rigid and where the finished
work is positioned such that it is protected
Finishes

from impact, Gyproc Styletrims can be

fixed by simply bedding in jointing material
and following immediately with the joint
treatment.
C08

Where increased strength and durability

are required, mechanical pre-fixing of the
Gyproc Styletrims is recommended. This
may also be preferred in situations where
a number of Gyproc Styletrims are to be
fitted, as it enables the fixing operations to
be completed independently of jointing and
finishing. Gyproc Styletrims can be pre-fixed
mechanically or by using Gyproc Sealant.

C08. S05. P05 british-gypsum.com