WPA 200 - Technical Data Sheet
WPA 200 is a highly flexible, two part, rapid drying, cementitious waterproofing membrane, specifically designed for use under ceramic and stone tile finishes in bathrooms, balconies, roofs and some swimming pools.
WPA 200 combines the fast drying and excellent adhesion characteristics of traditional two part membranes with the outstanding toughness, elongation and flexibility of next generation acrylic waterproofing membranes. It is formulated to be UV resistant and is suitable for light (maintenance) traffic.
WPA 200 has excellent adhesion to concrete, cement screeds and most F/C sheets and may be used in conjunction with WPA Elastoband for maximum performance and ease of use.
Waterproofing of areas subsequently covered by ceramic and stone tiles or resilient floor coverings
Features and Benefits
Class II membrane in accordance with AS 4858 and AS 4654.1;
Formulated to be UV resistant;
Suitable for light foot traffic;
Compatible with a wide range of tile adhesives;
Completely resistant to re-emulsification;
Excellent adhesion to a wide variety of substrates;
Suitable for spray applications.
WPA 200 is suitable for concrete, render, screeds, block work, fibre-cement sheeting, wet area grade plasterboard, PAA certified structural and marine plywood and Scyon sheeting. Metal and PVC surfaces must be primed with WPA 160 All Purpose primer.
Always contact the manufacturer if there is any doubt about the suitability of substrates.
All surfaces to be waterproofed must be firm, clean, dry, sound and smooth. All laitance, grease, oil, wax, curing compounds, loose material, paint and any other contaminants which may reduce or prevent adhesion must be mechanically removed. Masonry surfaces must be pointed flush and surface defects repaired.
New concrete must be cured for minimum 28 days. All concrete must be completely dry and primed with WPA 360 water based primer or WPA 560 two part water based epoxy.
Render and cement screeds must be cured for a minimum of 7 days. Damp render or screeds must be allowed to thoroughly dry or primed with WPA 560 two part water based epoxy.
Fibre cement sheeting, water resistant plasterboard, PAA structural and marine plywood and Scyon sheeting must be installed in accordance with the manufacturers’ installation requirements.
Incorporate WPA Elastoband at all horizontal and vertical transitions.
WPA 200 is suitable for use in concrete and masonry swimming pools, provided they are rendered and then primed using WPA 560 two part epoxy primer.
On retaining walls and in all Planter Box application, Newton 408 Drainage Cell must be installed to the entire waterproofed area, once the membrane has fully cured.
WPA 200 cannot span gaps. For dynamic cracks/expansion joints and control joints, the use of the WPA Elastoband system is recommended. Contact the WPA Technical Department for further advice.
Porous substrates must be primed with WPA 360 water based primer. Alternatively, dilute the WPA 200 mixture 10 – 20% with water and prime the surface with this mixture. In exterior applications, prime the substrate with WPA 460 primer or WPA 560 Moisture shield.
Dense substrates, such as metals or PVC must be primed with WPA 160 All Purpose Primer.
Apply the primer to the prepared substrate using a brush or roller in accordance with the relevant product’s Technical Data Sheet. Allow primers to fully dry prior to commencing the application of WPA 200.
Add approximately 8 litres of WPA 200 Liquid to a 20L bucket. Slowly add WPA 200 Powder while stirring with a mechanical mixer. Continue to stir until the mixture is lump free, then add an additional 2 litres of WPA 200 Liquid until a homogenous mix is obtained. Allow the mixture to slake for 5 minutes and re-stir.
If required, the mixture may be remixed every 20 – 30 minutes, however, product that has been mixed and allowed to stand for longer than 2 hours, or has become very thick, should be discarded.
Using a brush, roller or airless spray, apply the first coat of WPA 200 after the primer has sufficiently dried. Apply an even and consistent coat of approximately 0.60mm wet film thickness.
Once the first coat has dried (4-8 hours), apply a second of WPA 200 at right angles to the first coat. Apply an even and consistent coat of approximately 0.60mm wet film thickness. Allow the final coat to cure for 24 hours prior to installing tiles. Allow the membrane to cure for 7 days in swimming pools.
WPA 200 must be applied with a minimum of two coats to achieve a dry film thickness of not less than 1.0mm (1000 microns). Test the depth of coats with a wet film thickness gauge at regular intervals during installation.
Note: Avoid contact with skin and eyes. Wear splash proof goggles and rubber or PVC gloves at all times.
Performance Data and Physical Properties @23°C & 55% RH
Allow 4-8 hours between coats.
Allow 24 hours cure time prior to tiling.
Allow longer drying times in cool or damp weather conditions.
S.G. of mixed product
Do not apply WPA 200:
Over damp, wet or contaminated substrates;
If it is raining or if rain is imminent;
Directly over any existing coatings;
Directly to particle board flooring. (Ceramic tile underlay must be installed);
As a high wear surface for foot or vehicle traffic;
Where ambient or surface temperatures are below 10°C or greater than 40°C;
To areas subject to negative hydrostatic pressure or rising damp (apply two coats of WPA 560 first);
To reduce the possibility of surface contamination, it is recommended that tiling be carried out as soon as the membrane has cured.
Tools and minor spills can be cleaned with water while product is still wet. Cured WPA 200 can be cleaned by mechanical means.
40 Litre Kit (20 litre Liquid, 20 kg Powder).
Floors - 1.2 litres per m2 at 1mm dry film thickness (23m2 per kit).
Walls - 0.75 litres per m2 at 0.6mm dry film thickness (45m2 per kit).
The coverage figures are theoretical due to wastage and depending on the porosity and profile of the substrate, coverage figures may be reduced.
Unopened pails can be stored for up to 12 months in a cool, dry and weatherproof environment. If stored at high temperatures, the shelf life may be reduced.
If poisoning occurs, contact a doctor or Poisons Information Centre (Phone Australia 131 126).
Remove victim from exposure - avoid becoming a casualty. Remove contaminated clothing and loosen remaining clothing. Allow patient to assume most comfortable position and keep warm. Keep at rest until fully recovered. Seek medical advice if effects persist.
If skin or hair contact occurs, remove contaminated clothing and flush skin and hair with running water.
If swelling, redness, blistering or irritation occurs seek medical assistance.
If in eyes, wash out immediately with water. In all cases of eye contamination it is a sensible precaution to seek medical advice.
Rinse mouth with water. If swallowed, do NOT induce vomiting. Give a glass of water to drink. Never give anything by the mouth to an unconscious patient. If vomiting occurs give further water. Seek medical advice.
Notes To Physician
Prevent from entering drains or waterways. Absorb with sand, earth or spill control material. Collect in properly labelled containers for disposal in accordance with local statuary requirements.
Waterproofing Products Australia warrant this product for 10 years provided the application is in accordance with our written directions for use and the relevant Australian Standards have been followed. The representations and recommendations regarding this product are based on tests which we believe to be reliable. However, no guarantee of their accuracy can be made due to the great range of field conditions and variations encountered in raw materials, manufacturing equipment and methods. Thus, this product is sold with a limited warranty only, and on the condition that purchasers will carry out their own tests to determine the suitability of the product for their particular purposes. Under no circumstances will Waterproofing Products Australia be liable to anyone except for replacement of the products or refund of the purchase price.
The information provided in this technical bulletin is as correct in detail as possible and is intended to give a fair description of the product and its capabilities. In practice, the substrate and environmental conditions vary widely, making it essential for the user to determine the product’s suitability for a particular application and that the product is not used beyond its physical limitations. The product is guaranteed providing it is applied in accordance with the manufacturer’s instructions as stated in this data sheet and any relevant Standard or Code, and provided the building and installation is structurally sound. Waterproofing Products Australia terms and conditions of sale apply.
STATEMENT OF RESPONSIBILITY
The technical information and application advice given in this Waterproofing Products Australia publication is based on the present state of our best scientific and practical knowledge. As the information contained herein is of a general nature, no assumption can be made as to a product’s suitability for a particular use or application and no warranty as to its accuracy, reliability or completeness, either expressed or implied, is given other than those required by law. The user is responsible for checking the suitability of products for their intended use.
Field service where provided does not constitute supervisory responsibility. Suggestions made by Waterproofing Products Australia either orally or in writing may be followed, modified or rejected by the owner, engineer or contractor since they, and not Waterproofing Products Australia, are responsible for carrying out procedures appropriate to a specific application.
Last updated July 2018.
The publication of this Data Sheet invalidates all previous Product Information. Data Sheets are subject to change without notice. Please visit
regularly to view up to date information. This is a CONTROLLED document under WPA’s Quality System.