PRODUCT DATA SHEET

Sika® Tite WPU

FLEXIBLE, FIBRE REINFORCED, UV STABLE, WATERBASED POLYURETHANE WATERPROOFING

DESCRIPTION CHARACTERISTICS / ADVANTAGES

Sika® Tite WPU is a premixed, single component, wa- ▪ High Extensibility >300%
terbased polyurethane waterproofing membrane. ▪ UV Stable
Sika® Tite WPU is a Class III - High Extensibility and ▪ Micro fibre enhanced reinforcement
forms an elastomeric, seamless waterproofing mem- ▪ Internal and external applications
brane for use in internal and external applications for ▪ One part – No mixing, ready to use
under tiled finishes including shower recesses, bath- ▪ Water based - Low VOC's, Non hazardous
rooms, laundries, decks, balconies, podiums and ▪ Compatible with Sika® and CTA® range of tile adhes-
rooftops. Sika® Tite WPU has low VOC's and bonds to ives
a wide variety of substrates. Sika® Tite WPU contains
micro fibre reinforcement for improved tensile APPROVALS / CERTIFICATES
strength and crack bridging.
AS/NZS 4858: Wet area membranes - Class III
USES AS 4654.1: Waterproofing membrane systems for ex-
terior use-Above ground level
▪ Concrete
▪ Sand / cement screeds
▪ Cement render
▪ Fibrous cement sheeting
▪ Structural particle board sheeting
▪ Compressed fibrous cement sheeting
▪ Water resistant platerboard
▪ Structural plywood sheeting

PRODUCT INFORMATION
Packaging 15 Litre plastic pails
Colour Grey
Shelf life 12 months from date of manufacture in original, sealed containers, if the
storage conditions are met.
Storage conditions Store in dry, weatherproof environment, protected from direct sunlight at
temperatures between +5˚C and +25˚C
Volatile organic compound (VOC) con- Low VOC - 43g/lt (SCAQMD method 304-91)
tent

Product Data Sheet

Sika® Tite WPU
November 2019, Version 01.02
020706050010000028

1/3
Tensile Strength 2.52 MPa
Permeability to Water Vapour ~ 3.29g/m2/24hr

APPLICATION INFORMATION
Consumption WALLS: Apply two coats to achieve a minimum dry film thickness of
0.6mm. Application coverage rate of 0.45L/m2 per coat.
FLOORS: Apply two coats to achieve a minimum dry film thickness of
0.8mm. Application coverage rate of 0.60L/m2 per coat.
EXPOSED AREAS: Apply three coats to achieve a minimum dry film thick-
ness of 2.0mm. Application coverage rate of 1L/m2 per coat. Coverage
may vary depending on substrate and application method.
Drying time Allow a minimum of 10 hours curing prior to applying finished covering,
and a minimum of 5 days to cure before flood testing. Allow longer in ad-
verse weather conditions.
Waiting Time / Overcoating Allow Sika® Tite WPU 2-3 hours to dry between coats. Allow longer in ad-
verse weather conditions.

APPLICATION INSTRUCTIONS ECO SYSTEMS® Prep 'N' Prime.

Non Porous Substrates
SUBSTRATE PREPARATION It may be necessary to mechanically prepare the area.
All surfaces to be waterproofed must be firm, clean, Any existing tiles must be well bonded and be free
dry, structurally sound and smooth. All grease, oil, from any sealers or coatings. Dense, low absorbent
wax, curing compounds, dust, loose material, laitance and impervious surfaces must be primed with ECO
and other contaminants must be removed. All projec- SYSTEMS® Prep 'N' Prime.
tions and rough spots should be dressed off to achieve Static Crack & Sheet Joint Treatment
a level surface. The substrate surface must be continu- For static cracks 0.5 – 3mm wide rout out and clean
ous and not pond water. Porous dry surfaces must be thoroughly before filling with Sika® Neutral Cure silic-
primed using ECO SYSTEMS® Eco Prime WB. Highly one to form a Bond Breaker, For all sheet joints and
porous and dusty substrates must be primed with seams clean thoroughly and fill with Sika® Neutral
Aqua Blök® Epoxy Prime 2K, damp green substrates Cure silicone to form a Bond Breaker, apply a liberal
must be primed using SikaTite® Moisture Seal 2K. coat of Sika® Tite WPU extending 100mm either side
Dense and impervious substrates must be primed us- of the joint and place Aqua Blök® reinforcing bandage
ing ECO SYSTEMS® Prep 'N' Prime. into the wet membrane, press down firmly to ensure
Concrete good contact, apply another liberal coat of Sika® Tite
Allow at least 28 days for the concrete to cure. Con- WPU to the entire surface to embed the bandage. For
crete should be left with an open surface – standard dynamic cracks, expansion joints and control joints
wood float or broom finish. All traces of curing com- contact Sika® technical service for advice.
pounds or sealers should be removed prior to applica- BOND BREAKER
tion. Old concrete must be thoroughly cleaned and Sika® Tite WPU is a Class III membrane with high ex-
washed and allowed to dry. The surface should be tensibility and is designed for use with a 12mm Bond
even unless falls are incorporated where required, im- Breaker, a bead of Sika® Neutral Cure silicone must be
perfections to be repaired with a suitable Sika® Mono- tooled off to form a 12mm wide bond breaker. A bond
Top repair mortar. breaker must be installed at areas subject to move-
Sand / Cement Screeds and Renders ment, wall/wall junction, wall/floor junction, sheet
The screeds and / or renders must conform to the ap- joints and seams, penetrations and where there is a
propriate standard and should be left with a wood change in the direction or substrate type.
float finish and left to cure for at least cure for 7 days. TILING
Building Boards Sika® Tite WPU is compatible with a range of Sika® CTA
® polymer modified tile adhesives, Contact Sika Tech-
Water resistant plasterboard, fibrous cement sheet-
ing, marine ply must be solidly fixed in accordance nical Service for further advice.
with the manufacturer's instructions specifically for APPLICATION METHOD / TOOLS
tiling. The area must be primed with ECO SYSTEMS®
Eco Prime WB, particularly where a jointing compound Sika® Tite WPU may be applied using a brush or roller.
has been used. The surface must be continuous, Sika® Tite WPU can-
Particleboard not span gaps or voids. A minimum of two coats is re-
Particleboard must be fixed in accordance with the commended, each coat must be applied in a perpen-
manufacturer's instructions specifically for tiling and dicular direction to the previous coat. The application
free from any movement. Secure floor with additional must conform to Australian Standards and relevant
fixings and wedges, sand any surface contamination local building codes. Ensure there are no defects or
after initial preparation. The area must be primed with damage to the waterproofing membrane, if necessary

Product Data Sheet

Sika® Tite WPU
November 2019, Version 01.02
020706050010000028

2/3
repair and rectify by applying a third coat. ECOLOGY, HEALTH AND SAFETY
CLEANING OF EQUIPMENT
For information and advice on the safe handling, stor-
Clean tools and equipment with clean water while the age and disposal of chemical products, users shall
material is still wet. Cured coating can only be re- refer to the most recent Safety Data Sheet (SDS) con-
moved mechanically. taining physical, ecological, toxicological and other
safety related data.
FURTHER INFORMATION
LEGAL NOTES
Safety Data Sheet (SDS)
The information, and, in particular, the recommenda-
IMPORTANT CONSIDERATIONS tions relating to the application and end-use of Sika
products, are given in good faith based on Sika's cur-
LIMITATIONS rent knowledge and experience of the products when
▪ Sika® Tite WPU is not suitable for negative hydrostat- properly stored, handled and applied under normal
ic head of water pressure. conditions in accordance with Sika's recommenda-
▪ Sika® Tite WPU must not be applied over damp or tions. In practice, the differences in materials, sub-
wet substrates. strates and actual site conditions are such that no war-
▪ Sika® Tite WPU must not be applied in rain or if bad ranty in respect of merchantability or of fitness for a
weather is imminent. particular purpose, nor any liability arising out of any
▪ Sika® Tite WPU must not be applied over coatings or legal relationship whatsoever, can be inferred either
contaminations. from this information, or from any written recom-
▪ Sika® Tite WPU must be applied at the recommen- mendations, or from any other advice offered. The
ded coverage rate. user of the product must test the product’s suitability
▪ Sika® Tite WPU must not be used in submerged ap- for the intended application and purpose. Sika re-
plications. serves the right to change the properties of its
▪ Sika® Tite WPU must not be used as a trafficable products. The proprietary rights of third parties must
coating. be observed. All orders are accepted subject to our
▪ Do not apply Sika® Tite WPU when the temperature current terms of sale and delivery. Users must always
is below 10˚C or greater than 35˚C. refer to the most recent issue of the local Product
▪ Do not allow Sika® Tite WPU WPU to freeze.
Data Sheet for the product concerned, copies of which
▪ To eliminate contamination or damage, the finished
will be supplied on request.
covering must be applied as soon as Sika® Tite WPU
has cured.
▪ Timber floors must be overlaid with suitable cement
sheeting prior to waterproofing.
▪ Contact Sika® Technical Services for advice if further
information is required

BASIS OF PRODUCT DATA

All technical data stated in this Product Data Sheet are
based on laboratory tests. Actual measured data may
vary due to circumstances beyond our control.

LOCAL RESTRICTIONS
Please note that as a result of specific local regulations
the declared data for this product may vary from
country to country. Please consult the local Product
Data Sheet for the exact product data.

Sika Australia Pty Limited

ABN 12 001 342 329
aus.sika.com
Tel: 1300 22 33 48

SikaTiteWPU-en-AU-(11-2019)-1-2.pdf

Product Data Sheet

Sika® Tite WPU
November 2019, Version 01.02
020706050010000028

3/3