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
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