Description Product Overview ARDEX WPM 368 is a single-component acrylic copolymer barrier membrane designed to prevent rising damp, efflorescence, and moisture ingress in concrete and masonry substrates. It is suitable for use as both a moisture barrier and waterproofing coating across a wide range of internal and external applications. The formulation allows application to damp surfaces and freshly laid hardened (green) concrete, making it suitable for fast-track construction environments. It provides resistance to negative hydrostatic pressure and delivers strong adhesion to substrates including concrete, masonry, and stone. ARDEX WPM 368 is commonly used prior to floor levelling compounds, adhesives, and coatings where moisture control is critical. Key Features Single-component acrylic copolymer membrane – ready to use Prevents rising damp and efflorescence Resists negative hydrostatic pressure Can be applied to damp substrates and green concrete Excellent adhesion to concrete, masonry, and stone No sand blinding required – built-in mechanical key Low odour, water-based formulation Suitable for internal and external applications Applications Moisture barrier over damp or green concrete Waterproofing of basements, retaining walls, and lift wells Negative side waterproofing applications Barrier coating prior to levelling compounds and adhesives Prevention of efflorescence in concrete substrates General waterproofing in building and construction environments Notes Ready to use – no mixing required Apply by brush, roller, or airless spray Typical coverage approx. 3.0 m²/L per coat Apply two coats for waterproofing or moisture barrier applications Recoat time approx. 2–4 hours depending on conditions Allow 24–48 hours for full cure before overcoating Ensure substrate is clean, sound, and free of contaminants Technical Information Technical Specifications: Type Single-component acrylic copolymer membrane Form Liquid applied Colour Grey Coverage Approx. 3.0 m²/L per coat (0.3mm WFT) Coverage (1 coat) Approx. 45 m² per 20kg Coverage (2 coats) Approx. 22.5 m² per 20kg Recoat Time Approx. 2–4 hours Full Cure Approx. 24–48 hours Wet Film Thickness Approx. 0.3mm per coat Substrates Concrete, masonry, concrete block, stone Location Internal and external Application Method Brush, roller, or airless spray Packaging 20kg drum This barrier membrane is designed for projects where moisture control and substrate preparation are critical prior to flooring or coating installation. Its ability to perform on damp and green concrete makes it a practical solution for fast-track construction and remediation work.
