Duromastic P15 Diamond – Waterproofing Membrane (18kg)
Duromastic P15 Diamond is a premium, polyurethane-modified acrylic waterproofing membrane designed specifically for non-exposed internal and external wet areas. Ideal for bathrooms, laundries, balconies, terraces, and more, it forms a tough, elastomeric grey film that delivers long-lasting protection against moisture damage.
Perfect for use prior to mortar beds, rendering, or tiling, Duromastic P15 Diamond offers flexibility, strength, and ease of use — trusted by professionals across Australia.
✅ Key Features:
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Water-based, non-hazardous & non-flammable
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Compatible with polymer-modified tile adhesives
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Easy application by brush or roller (10–12mm nap)
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Paintable with acrylic coatings
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Exceptional flexibility – extends over 500%
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Simple water clean-up (when wet)
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AS4858 Class III and AS3740 compliant
📄 Downloads:
📦 Bulk Pricing:
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Single Bucket (18kg) – $110
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Box of 6 – $99 per 18kg unit
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Box of 12 – $95 per 18kg unit
Bulk orders available for tradies and contractors — contact us for custom quotes or delivery options.
Working with businesses we understand needs will always vary project to project. To make life easier we provide custom quotes and discounted pricing on bulk orders. Simply leave your details below and our friendly team will get in touch.