Original price was: $210.00.$175.00Current price is: $175.00.
WPA 500 is a high-performance, water-based undertile waterproofing membrane designed for bathrooms, laundries, and balconies. Fibre-reinforced and permanently flexible, it provides excellent adhesion, fast drying times, and long-lasting protection under ceramic and stone tiles.
Available in 15L GREY.
Coverage: 10M2.
10 in stock (can be backordered)
Greater Sydney! Order by 12pm, get it delivered same day.
Free 2-3 Days Delivery for Purchases over $350.
South Coast, Central Coast & Blue Mountains delivered overnight*.
Orders:
-Online Checkout
-Order Via Email
-Order Via Phone
-Store Pick Up
Payments:
-All major Credit Cards
-Google Pay
-Apple Pay
-Send you Invoice*
-(COD)Cash on Delivery*
** Invoices & Cash on delivery via emails only.
Dry porous substrates must be primed with WPA 360 waterbased or WPA SB solvent-based primers. Damp substrates with a RH of <75% must be primed with WPA 460 two-part epoxy primer.
Substrates with an RH >75% must be primer with WPA 560 Moisture Seal.
Lightweight structural fibre cement sheeting must be primed with WPA 460 two-part epoxy primer or WPA 560 Moisture Seal. Non-porous substrates, such as metals or PVC must be primed with WPA 160 Non-Porous primer.
WPA 500 is a waterborne, fibre-reinforced waterproofing membrane formulated for under-tile applications. Engineered with advanced polymer technology, it offers outstanding flexibility, durability, and adhesion. Its excellent workability and film build make it the go-to solution for professional tilers, builders, and renovators.
Fully compliant with Australian standards, WPA 500 is a Class III membrane (AS/NZS 4858 and AS 4654.1), ensuring long-term waterproofing performance in residential and commercial wet areas.
Bathrooms & showers
Laundries & wet rooms
Balconies & decks
Any area waterproofed prior to tiling with ceramic or stone
✅ Class III compliant membrane (AS 4654.1 & AS/NZS 4858)
✅ Fast drying – speeds up project completion
✅ Fibre-reinforced for added durability and crack bridging
✅ Low VOC content – safe for internal environments
✅ Permanently flexible – accommodates structural movement
✅ Excellent adhesion to diverse substrates
✅ Resistant to re-emulsification once cured
✅ Compatible with a wide range of tile adhesives
Do not apply WPA 400:
• Over damp, wet or contaminated substrates
• If it is raining or if rain is imminent
• Directly over any existing coatings
• As an exposed membrane
• As a high wear surface for foot or vehicle traffic
• Where ambient or surface temperatures are below10°C or greater than 35°C.
• To areas subject to negative hydrostatic pressure or rising damp
• To areas of continuous immersion such as swimming pools, ponds, water features or water tanks
To reduce the possibility of surface contamination, it is
recommended that tiling be carried out as soon as the
membrane has cured.
