WMA UV SPEC – UV-Stable Class III Waterproofing Membrane
- Regular price
- $140.00 AUD
- Sale price
- $140.00 AUD
- Regular price
-
- Unit price
- / per
Prices shown exclusive of GST.
WMA UV SPEC is H2O Supplies’ go-to waterproofing membrane, trusted by builders and applicators for its balance of performance, durability and ease of use. This water-based polyurethane acrylic membrane is suitable for both internal wet areas and external exposed applications, delivering reliable protection under tiles or in fully exposed environments.
Compliant with AS 4858 and AS 4654.1, UV SPEC is a Class III UV-stable membrane designed for Australian conditions. It forms a tough, seamless barrier with excellent flexibility, fast curing and long-term resistance to water, salts and carbonation.
Whether it’s a bathroom renovation, a rooftop or a podium deck, WMA UV SPEC provides consistent results and a clean, durable finish. It can also be tinted to any shade of grey to suit your project’s design or visibility requirements, making it one of the most adaptable membranes in the Waterproofing Membranes range at H2O Supplies.
• Class III elasticised water-based polyurethane membrane
• Compliant with AS 4858:2004 and AS 4654.1
• UV stable for exposed applications
• Does not re-emulsify once cured
• Fast curing and easy to apply
• Seamless and flexible finish
• Resistant to salt and carbon attack
• Environmentally friendly
• Tintable in a range of grey shades
• Internal wet areas and bathrooms
• External decks, balconies and podiums
• Rooftops and plant room floors
• Parapet walls and retaining walls
• Garden beds and planter boxes
• Compatible with most tile adhesives
• Appearance: Smooth, viscous liquid
• Type: Water-based polyurethane acrylic membrane
• Classification: Class III (AS 4858 & AS 4654.1 compliant)
• Solids by volume: 61%
• Curing time: 96 hours at 23°C / 55% RH
• Tack-free: Approx. 2 hours
• Recoat time: 6–12 hours
• Full cure before tiling: 36 hours
• Flood test: 4 days
• Coverage: Approx. 9 m² per drum (floors at 1mm DFT), 18 m² per drum (walls at 0.5mm DFT)
• Shelf life: 12 months (unopened)
• Storage: Store in a cool, dry place away from heat and direct sunlight
• Compliance: AS 4858:2004, AS 4654.1
- balconies
- external decks
- grey membrane
- internal wet areas
- polyurethane membrane
- rooftops
- tintable membrane
- UV SPEC
- UV stable
- water-based membrane
- waterproof coating
- WMA
Why Choose H2O Supplies?
Preferred by the Trade
Reliable Product Range
Eco-Friendly & Sustainable
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"Brilliant service and fast turnaround! The H2O team got my order ready on the same day — helped me stay on track and impress the builder."
"H2O helped me spec the right system for a balcony job. Even with the weather turning bad, their advice paid off — no failures, just solid results."
"Great range and even better advice. The team knew exactly what I needed for the job — no stuffing around, just solid support from people who know the trade."
"Top-tier supplier! I’ve ordered from H2O across multiple projects and they always come through — great stock levels, advice, and fast turnarounds."
"H2O’s forensic team resolved a complex waterproofing issue on a large commercial site. Their reporting, advice, and support kept the project moving confidently.
"Great range and even better advice. The team knew exactly what I needed for the job — no stuffing around, just solid support from people who know the trade."
"Saved me a heap of time on site. H2O had exactly what I needed, and their advice on application helped me get it done faster with no hold-ups between stages."
"Our team relies on H2O for fast quotes, clear spec sheets, and product availability. Makes ordering for site a breeze — they know what tradies need."
"Product recommendations for concrete repair have been spot-on. Materials hold firm, cure quickly, and help us keep tight schedules without sacrificing quality."

