Dunlop Express Wet Area Waterproofing Membrane – 5kg

Dunlop Express Wet Area Waterproofing Membrane is a high-performance, fast-drying liquid membrane designed for use in internal wet areas including bathrooms, showers, laundries, and kitchens. This flexible, water-based acrylic polyurethane formulation creates a seamless and highly durable waterproof barrier that is tile-ready within hours. It’s suitable for use under tile adhesives, screeds, and other flooring products. The product forms a tough, elastomeric layer that resists movement, cracking, and water penetration. It meets the requirements of Class III membranes and is suitable for both floor and wall applications. Surface Preparation: Ensure all surfaces are clean, dry, and structurally sound. Remove dust, grease, oil, curing compounds, and loose or flaking materials. Prime all surfaces using a compatible primer. On porous or highly absorbent surfaces, apply a second primer coat if needed. Any existing cracks, gaps, or joints should be sealed or reinforced using bond breakers or reinforcing fabric. Application Instructions: Apply the membrane using a brush or roller. Two coats are required for effective waterproofing. First coat should be applied in one direction. Once dry to the touch (approx. 2 hours), apply the second coat in the opposite direction. Membrane should extend at least 150mm up walls in general wet areas and 1.8m in shower recesses. Waterproofing must be applied continuously and without breaks or pinholes. Use reinforcing fabric over joints and corners if required. Avoid application in conditions below 10°C or above 35°C. Coverage: Approximately 1m2 per litre per coat. A 5kg pail covers roughly 2.5m2 with two coats, depending on surface porosity. Drying Time: Touch dry: 1-2 hours Recoat time: 2 hours Ready for tiling: 4-6 hours Fully cured: 24 hours Drying times will vary with ambient temperature and humidity. Clean Up: Clean tools and equipment immediately after use with water. Do not allow membrane to dry on tools. Technical Data: Type: Water-based acrylic polyurethane Classification: Class III membrane Application Method: Brush or roller Flexibility: High Water Resistance: Excellent Colour: Grey Shelf Life: 12 months (unopened in cool, dry conditions)