
Description
OB1® Waterproof Tanking Solution – 7kg Grey Liquid Membrane
Ensure long-lasting waterproof protection in wet and humid environments with the OB1® Waterproof Tanking Solution. This one-part liquid tanking membrane creates a seamless barrier against moisture, making it an ideal solution before tiling in wet-rooms, showers, kitchens, bathrooms, and utility rooms.
Applied easily with a brush or roller, this grey tanking solution is suitable for both interior and exterior use, and effectively seals cracks and joints up to 3mm. Whether you're renovating a domestic bathroom or waterproofing a commercial spa, OB1® delivers professional-grade reliability with every coat.
Features & Benefits
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Universal Waterproofing – Ideal for wet-rooms, showers, kitchens, and utility rooms
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Versatile Application – Suitable for swimming pools, spas, steam rooms, and more
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Interior & Exterior Use – Can be used indoors or outdoors depending on your project needs
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Crack Bridging Capability – Seals existing cracks and joints up to 3mm wide
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Simple Application – Apply directly with a brush or roller for a seamless finish
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Pre-Tiling Protection – Designed to be used before wall and floor tiling
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Colour: Grey
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Pack Size: 7kg
Applications
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Bathrooms & Showers – Prevent water ingress before tiling walls or floors
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Wet-Room Installations – Essential for creating fully waterproof wet-room bases
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Swimming Pools & Spas – Seals surfaces in high-moisture commercial or residential areas
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Steam Rooms & Hot Tubs – Durable enough to withstand elevated temperature and humidity
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Utility Rooms & Kitchens – Use behind splash zones to avoid long-term water damage
Frequently Asked Questions
Q1: Can OB1® Tanking Solution be tiled over directly?
A: Yes, once fully cured, OB1® provides a suitable surface for direct tiling on both walls and floors.
Q2: How many square metres does a 7kg pack cover?
A: Coverage will vary by surface porosity, but typically a 7kg pack covers approximately 7–10m² in two coats.