Description
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:
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Apply the membrane using a brush or roller.
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Two coats are required for effective waterproofing.
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First coat should be applied in one direction.
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Once dry to the touch (approx. 2 hours), apply the second coat in the opposite direction.
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Membrane should extend at least 150mm up walls in general wet areas and 1.8m in shower recesses.
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Waterproofing must be applied continuously and without breaks or pinholes.
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Use reinforcing fabric over joints and corners if required.
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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:
Clean Up:
Clean tools and equipment immediately after use with water. Do not allow membrane to dry on tools.
Technical Data:
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Type: Water-based acrylic polyurethane
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Classification: Class III membrane
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Application Method: Brush or roller
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Flexibility: High
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Water Resistance: Excellent
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Colour: Grey
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Shelf Life: 12 months (unopened in cool, dry conditions)
