Nitobond SBR 300 constructive solutions

SBR based Mortar and Screed modifier & Corroded reinforcing steel should be exposed around its full
cum bonding agent. circumference and cleaned to remove all loose scale and cor-
rosion deposits. It is always preferably to clean the steel to a
Uses bright condition. Use of emery cloth, grit or sand blasting is
recommended.
For making of polymer modified mortar and screeds , bonding
Priming
agent, repair of worn, damaged and spalled concrete, slurry
coat as base for waterproofing. Reinforcing steel must be primed with Nitozinc Primer imme-
diately after cleaning. The concrete substrate should be thor-
Advantages
oughly dampened with water and any excess water removed
 Simple to use - Single component, gauged as required. before being primed by thoroughly scrubbing in a slurry coat of
1 volume Nitbond SBR Latex to 1 volume water to 3 volumes
 Provides excellent bond to concrete, adhesion plaster,
fresh cement.
masonry, stone work, etc.
 Provides mortar with improved durability impermeability In order to obtain a smooth consistency the cement should be
to chlorides and other harmful agents. blended slowly into the liquids. Stir frequently during use to
 Provides waterproof and cohesive screeds, plasters and offset settlement.
impermeable slurry coat.
Avoid ‘puddling’ of the slurry coat. The topping must be applied
 Improves tensile and flexural properties of cement thereby on to the wet slurry. If the slurry dries out it must be removed
reduces cracking. and the clean substrate reprimed.
 Compatible with all common hydraulic cements.
Typical Mix designs :
 Cost effective and economical
1. Patching and repair mortars and plaster for masonary
Description
Cement 50 kg
Nitobond SBR 300 is modified styrene butadiene emulsion Zone II sand 150 kg
specially designed for use as a bonding aid and gauging liquid Nitobond SBR 300 5 - 9 litres
for cementitious systems. It is resistant to hydrolysis and can Recommended water addition 11 - 15 litres
therefore be used for external applications too. Recommended thickness 8 to 20mm

Technical Support 2. Screeding

Cement 50 kg
Fosroc provides a technical advisory service supported by a
3-6mm Granite chips 75 kg
team of specialists in the field.
Zone II sand 75 kg
Chemical resistance : Nitobond SBR 300 5-9 litres
Recommended water addition 8-12 litres
Cementitious based materials have limited chemical resitance.
Recommended thickness 10-25mm
The addition of Nitobond SBR 300 to cement mortars reduces
permeability and therefore helps reduce the rate of attack by The screed should be of a semi-dry cohesive consistency.
aggressive chemicals.
3. Polymer modified cement grout for injection - Nito-
Application instructions bond SBR 300 can be used to effectively modify properties
of cement grout for crack injection. The dosage of Nitobond
Surface Preparation:
SBR 300 shall be in the range of 4 L/bag of cement. The
The object of the surface preparation is to achieve a clean injection is carried out as per standard practice.
sound surface with a good mechanical key. All substrates
Note : Increased dosages of Nitobond SBR 300 and further
should be cleaned and free of dust, plaster, oil, paint, grease,
Nitobond SBR 300

water reduction leads to improved mechanical properties

corrosion deposits, and any other deleterious substances.

Laitence should be removed by mechanical means. Smooth

substrates must be mechanically roughened e.g. by scabbling,
needle gun or grit blasting to provide an adequate key.

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Nitobond SBR 300

Cleaning If contact with skin occurs, wash well with soap and water. Eye
Tools and equipment should be washed with water immediately contamination should be washed thoroughly with clean water
after use. and medical advice sought. If swallowed seek medical atten-
tion immediately - Do not induce vomiting.
Additional Guidance
Fire
Prepare surfaces thoroughly. Toe-in at edges wherever possible
to avoid feather edging. All surfaces including edges must be Nitobond SBR 300 is non flammable.
primed. All applications should be wet on wet, the primer must Additional information
not be allowed to dry.
Nitobond SBR 300 is part of a wide range of adhesives, repair
The level of added water in the mix designs may need adjust- mortars, sealing compounds and flooring products specially
ment to achieve the required consistency. In general water designed and manufactured by Fosroc for the construction in-
content should be kept to the minimum necessary. dustry. Separate datasheets are available on all these products.
For consistent performance the use of clean, dry sand is rec-
ommended. Where wet sand is used, reduce the addition of
water as appropriate.

In order to prevent rapid drying, mortars should be properly

cured with Concure WB, curing compound.

Protect uncured mortar from frost.

Do not retemper mortar or primer after initial set. Minimum

application temperature is 100C. For permanently immersed
conditions consult Local Fosroc office.

Estimating

Packaging

Nitobond SBR 300 is supplied in 1, 5, 20 & 50 litre containers.

Coverage

Slurry primer - approximately 4- 5 m2/ litre depending on sub-

strate porosity.

Storage

Shelf life

Nitobond SBR 300 has a shelf life of 12 months if kept in a dry

store in unopened condition.

Precautions
Health & Safety instructions

Nitobond SBR 300 should not come in contact with skin and
eyes or be swallowed. Protective gloves and goggles should
be worn during handling the product.

constructive solutions page 2 of 3

Nitobond SBR 300

Important note :
Fosroc products are guaranteed against defective materials and manufacture and are sold
subject to its standard terms and conditions of sale, copies of which may be obtained on
request. Whilst Fosroc endeavours to ensure that any advice, recommendation, specification
or information it may give is accurate and correct, it cannot, because it has no direct or
continuous control over where or how its products are applied, accept any liability either
Fosroc Chemicals directly or indirectly arising from the use of its products whether or not in accordance with
any advice, specification, recommendation or information given by it.
(India) Pvt. Ltd.
Head Office telephone fax e-mail
Embassy Point, No. 150,
2nd Floor, Infantry Road, +91 80-42521900 +91 80-22281510 enquiry.india@fosroc.com
Bangalore 560 001,
Karnataka

Regional Offices

Chennai Mumbai Noida Kolkata

Hills Centre,Old No 5, MBC Park, 12th floor, Office No.12B, Unit No. 601, Highway Tower-II 304, Jodhpur Park
New No 9, 3rd Cross Street, ‘D’ Block, Near G Corp/Hyper City A-13/2, 6th Floor, Sector– 62 Kolkata 700 068
Jeth Nagar, Raja Annamalaipuram, Kasarwadawali, Ghodbunder Road, Gautam Buddha Nagar, Ph:+91 33-65343188
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Ph: 9500064795 Ph: +91 22 6229 6800 Ph: +91 120 6121900
Fax: 0120-4270622

www.fosroc.com
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