Waterproofing
Polyurethane SystemsWet Areas & Under-Tile Waterproofing
Complete under-tile waterproofing for bathrooms and wet rooms.
Overview
A polyurethane liquid-applied membrane for under-tile waterproofing in wet areas including bathrooms, en-suites, wet rooms, and kitchens. Applied prior to tiling on floors and vertical wall surfaces, the system is compatible with standard alkalic tile adhesives, seals all joints and penetrations, and prevents the dampness and humidity buildup that causes tile debonding, grout failure, and structural damage over time.
Key benefits
- ▸Compatible with alkalic tile adhesives — no primer conflict
- ▸Forms seamless membrane that adapts to any form including wall-floor junctions
- ▸Secure sealing of joints, pipe penetrations, and wall details
- ▸Minimal additional height added to substrate
- ▸Resistant to water, heat, and frost
- ▸Crack-bridging
- ▸Water vapour permeable
- ▸Remains flexible from −40 °C to +90 °C
- ▸Provides excellent adhesion to almost any type of surface
Applications
- Bathrooms and en-suite wet room floors and walls
- Kitchen wet areas and splashback zones
- Commercial wet rooms and changing facilities
- Under-tile waterproofing on any horizontal or vertical surface
Technical documents
Download the full product catalogue, or request the TDS and SDS for project specification and approval.
Download catalogue (PDF) →Request documentation →Indicative technical data
Indicative values only. Refer to the full Technical Data Sheet for certified specifications. Contact Numastec to request the TDS for this product.
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