Aqua Build Fleece-Backed Waterproof Tanking Inner Corner Joint
Aqua Build Fleece-Backed Waterproof Tanking Inner Corner Joint is a pre-formed waterproof reinforcement piece designed specifically for sealing internal corner joints as part of a liquid tanking system.
Manufactured from a flexible, fleece-backed membrane, it is easily embedded into waterproof tanking membranes to create a durable, watertight seal at critical internal corners beneath tiles.
Important: This product is NOT self-adhesive. It must be applied using a compatible waterproof tanking membrane.

Typical Uses
- Internal corner joints in wet rooms
- Bathrooms, showers, and kitchens
- Waterproofing beneath wall and floor tiles
- Corner reinforcement within liquid tanking systems
- Interior and exterior tiled wet-area applications
Note: This product is NOT self-adhesive. Always install using a suitable waterproof tanking membrane.
Product Specifications
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Colour: Blue / Grey
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Central strip width: 70 mm
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Total width: 120 mm
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Thickness: 0.66 mm
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Material weight: 37 g/m
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Temperature resistance: -30°C to +90°C
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Certification: DIN EN ISO 9001:2008
Downloads
📄 Download Technical Data Sheet
Order Aqua Build Tanking Inner Corner Joint Today
A purpose-made internal corner reinforcement designed to integrate seamlessly with liquid waterproofing membranes, ensuring reliable, long-term protection in critical tiled wet-area junctions.