Waterproof XPS Wall Tile Backer Board

Our Waterproof XPS Wall Tile Backer Board is a high-performance engineered substrate specifically designed for tile and stone installations in moisture-prone zones, including walk-in showers, wet rooms, commercial bathrooms, and kitchen splashbacks.

Manufactured from a high-density, closed-cell extruded polystyrene (XPS) foam core and dual-faced with an alkali-resistant, glass-fiber reinforced polymer-cement mortar coating, this board delivers ultimate moisture resistance, structural rigidity, and thermal insulation in a single panel. It serves as a direct, labor-saving replacement for traditional heavy cement and paper-faced gypsum boards, eliminating the risk of substrate degradation behind tiled walls.

As an established industrial manufacturer, we supply bulk quantities to global tile distributors, building material wholesalers, construction contractors, and private label (OEM) brands. We support full customization regarding board thickness, dimensions, surface profiling, and export packaging.

1. 100% Waterproof Core for Continuous Wet Zones
Unlike paper-faced gypsum or porous cement boards that wick and retain moisture, our board features a closed-cell XPS core with a water absorption rate of under 1%. The dense cellular structure blocks moisture penetration, ensuring absolute dimensional stability in continuous humidity and direct water contact areas.
Commercial Value: Prevents core swelling, delamination, and subsequent tile failure in high-demand environments like steam rooms, residential showers, and wellness spas.

2. High Compressive Strength & Dimensional Stability
Substrate movement is the primary cause of grout cracking and tile delamination. Our boards provide high compressive strength (>= 300 kPa) and resist thermal-moisture expansion, providing a perfectly flat, rigid backing plane for ceramic, porcelain, natural stone, and heavy mosaic tiles.

3. Built-In Thermal Insulation
The XPS core acts as an effective thermal break, reducing heat transfer through exterior-facing walls and cold basement partitions. This improves overall indoor energy efficiency and prevents cold surface spots where condensation and mold could otherwise form behind the tile finish.

4. Optimized Logistics and Freight Efficiency
Featuring a fraction of the weight of traditional cement boards, our XPS panels dramatically optimize supply chain logistics.
For Distributors: Lower weight per square meter maximizes container loading volume, significantly reducing international shipping costs per unit.
For Contractors: Reduced physical strain allows for rapid, single-person handling, precise cutting, and faster vertical wall installation.

5. Fast, Clean Jobsite Fabrication
Boards can be easily trimmed using standard construction tools (utility knife or hand saw), generating minimal dust compared to the heavy mechanical sawing required for cement backer boards. Pre-scored alignment grids allow for fast positioning and secure fixing.

6. Universal Tile Adhesive Compatibility
The reinforced polymer-cement surface layer creates an optimal bonding interface, fully compatible with standard polymer-modified thin-set mortars, tile adhesives, liquid waterproofing membranes, and self-leveling compounds.

To ensure uncompromised performance across high-volume wholesale shipments, our production lines follow a strict three-stage QA/QC protocol:

We partner with international building material brands to offer comprehensive customization:

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