Key Features
100% waterproof HCFC-free XPS foam core
No tanking required – simply tape joints and corners
Compatible with concrete, timber, brick, metal and more
Lightweight, rigid, and easy to cut with a knife or saw
Strong adhesion with tile adhesives
Vapour retardant and resistant to mould
Helps improve underfloor heating efficiency by up to 50%
Suitable for both wall and floor installations
Replaces plasterboard and plywood in wet environments
Ideal for bathrooms, wet rooms, and high-moisture areas
Applications
Underfloor heating systems
Concrete and timber floors
Shower tray and bath surrounds
Wet rooms and bathrooms
Vanity units and shelving
Pipe boxing
Attaching to laths, supports, and masonry surfaces
General substrate preparation before tiling
Technical Specifications
Specification | Details |
XPS Foam Density | 32 ± 0.02 kg/m³ |
Thermal Conductivity | 0.033 W/(m·K) |
Compressive Strength (10% deflection) | 32 ± 0.02 kg/m³ |
Flexural Strength | 2.66 MPa |
Water Absorption (2-day Immersion) | < 1% |
Capillary Water Absorption | Zero |
Maximum Tile Loading | 62 kg/m² |
Nail Pull Resistance | 261 N |
Maximum Compressive Strength | 4535 N |
Board Size | 60 × 120 cm |
Recommended Fixings | Minimum 8 washers — 15 per board for best results |
Installation Instructions
Mark 8–15 fixing points on each board.
Apply flexible tile adhesive at each point and press the board into place.
Once set, drill through the fixing points into the solid substrate.
Fix using screws and washers — tighten until just flush (do not overtighten).
Tape all board joints using glass fibre tape; use waterproof tape for wet areas.
