Waterproof XPS Tile Backer Board
Lightweight waterproof XPS foam-core backer board with reinforced mesh and polymer mortar coating for tile and stone installations
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Product description
Product Overview
Waterproof XPS Tile Backer Board uses a closed-cell extruded polystyrene core reinforced on both surfaces with alkali-resistant mesh and a polymer-modified mortar coating. The foam core resists water absorption and helps limit water-vapor transmission, while the reinforced coating provides rigidity and a compatible bonding surface for tile adhesive, polymer mortar and decorative coatings.
Key Benefits
- Waterproof and moisture resistant for wet areas.
- Lightweight and easy to carry, cut and install.
- Reinforced surfaces support tile and stone bonding.
- Thermal insulation helps reduce heat loss.
- Suitable for walls, floors, countertops and leveling applications.
- Custom length, width and thickness available.
Typical Specifications
| Thermal Conductivity | 0.030–0.034 W/(m·K) |
|---|---|
| Dimensional Stability | ≤1.0% |
| Compressive Strength | 200–1000 kPa |
| Tensile Strength | ≥0.5 MPa |
| Water Absorption | ≤1.5% |
| Water Impermeability | No penetration at 0.3 MPa for 30 minutes |
| Mold Resistance | Grade 0, no visible mold growth |
Applications
Recommended applications include bathrooms, showers, kitchens, laundries, spa areas, basements, tiled walls and floors, countertops, underfloor-heating systems, roof insulation and interior or exterior renovation substrates.
Board Structure and Product Details
The images below show available board forms and the reinforced surface construction over the closed-cell XPS foam core.
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