Standard Waterproof Backer Board
Product Overview & Applications
Our waterproof tile backer board is a rigid, ultra-lightweight structural substrate engineered specifically for ceramic, porcelain, natural stone, and mosaic installations in high-moisture areas.
Unlike traditional cement boards that absorb moisture and require secondary waterproof membranes, our panels feature a 100% closed-cell extruded polystyrene (XPS) core. Both surfaces are reinforced with alkali-resistant fiberglass mesh and coated with a modified polymer cement mortar. This advanced engineered structure prevents water absorption while delivering exceptional dimensional stability for bathrooms, walk-in showers, commercial wet rooms, and underfloor heating systems.
Target Applications & Industry Keywords:
- Residential Solutions: Tile backer board for wet rooms, bathrooms, walk-in showers, kitchen splashbacks, laundry rooms, and balconies.
- Commercial & Industrial Projects: Hotels, luxury spas, steam rooms, swimming pool surrounds, hospitals, and modular/prefabricated pods.
- Specialized Systems: Optimized XPS building boards and heavy-duty backer boards for underfloor heating systems.
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Standard Lightweight Waterproof Backer BoardStandard Lightweight Waterproof Backer Board is a high-performance, specialized building panel engineered for heavy-duty wet-area tile installations. It features an eco-friendly, 100% recyclable...read more
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Standard Waterproof Wall Backer BoardOur Standard Waterproof Tile Backer Board is a high-performance engineered tile substrate engineered specifically for wet-area wall installations.read more
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Standard Waterproof Bathroom Backer BoardThe Standard Waterproof Bathroom Backer Board is a high-performance engineered tile substrate designed specifically for moisture-exposed environments, including shower enclosures, wet rooms, and...read more
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Standard Waterproof XPS Backer BoardThe Standard Waterproof XPS Backer Board is a high-performance, rigid, and lightweight tile substrate specifically engineered for wet-area construction.read more
Product Structure & Core Composition

Closed-Cell XPS Core
The structural backbone. Every microscopic cell is fully sealed, blocking water penetration and preventing swelling, softening, or degrading in humid environments.

Fiberglass Mesh Reinforcement
High-tensile, alkali-resistant mesh embedded on both sides to distribute surface loads evenly, enhance impact resistance, and prevent micro-cracking.

Polymer Cement Coating
A specially modified cement mortar surface that provides a rough, optimal texture for mechanical interlocking with standard tile adhesives, bypassing the need for extra surface primers.
Technical Specifications
|
Property |
Specification Value |
Testing Standard / Notes |
|
Core Material |
Extruded Polystyrene (XPS) Foam |
High-Density Rigid Foam |
|
Surface Finish |
Polymer Cement Mortar |
Ready for direct tiling |
|
Reinforcement |
Alkali-Resistant Fiberglass Mesh |
Both sides embedded |
|
Standard Thicknesses |
4, 6, 10, 12, 20, 30, 50 mm |
Custom sizes available |
|
Standard Width |
600 mm |
Precision CNC cut |
|
Standard Lengths |
1200 / 2400 mm |
Custom lengths upon request |
|
Water Absorption |
<= 0.1% by volume |
Closed-cell structure property |
|
Compressive Strength |
>= 300 kPa |
At 10% deformation |
|
Thermal Conductivity |
0.033 W/m·K |
Excellent thermal barrier |
|
Operating Temperature |
-50°C to +75°C |
Weather & freeze-thaw resistant |
Typical Floor System Layering
Subfloor (Concrete/Wood)
1
>>
Fixing Adhesive/Screws
2
>>
XPS Tile Backer Board
3
>>
Heating Wire (Optional)
4
>>
Tile Adhesive (C2)
5
>>
Tile
6
Key Features & Benefits for Contractors & Wholesalers

100% Waterproof Integrity: Waterproofing is inherent to the XPS core, not just a fragile surface film. On-site cutting or piercing does not compromise moisture resistance.
Labor & Shipping Cost Savings: Weighs only 3--5 kg/m2, drastically cutting international freight costs and reducing installer fatigue on large job sites.
Superior Dimensional Stability: Resists warping and twisting under fluctuating humidity and temperature changes, safeguarding against tile cracking and grout separation.
Built-in Thermal Insulation: Features high thermal resistance (0.033 W/m·K), preventing downward heat loss when installed over underfloor heating systems and boosting energy efficiency.
Fast & Clean Fabrication: Easily scored and snapped with a standard utility knife to fit around pipes, drains, and electrical fixtures without hazardous, heavy cement dust.
Quality Control, Standards & Compliance
Global Certifications
Manufactured under strict ISO9001 quality systems, meeting CE compliance standards. Third-party testing reports (TÜV / SGS) are readily available.
Strict Tolerance Control
Density and thickness tolerances are maintained within +- 2% to ensure consistent load-bearing capacity and thermal insulation across every batch.
Batch Traceability
Every production run carries an individual tracking code for full quality transparency prior to dispatch.

OEM, Customization & B2B Trade Terms
We empower global distributors, brands, and contractors with comprehensive contract manufacturing solutions:
Customization Services
Tailored dimensions, custom thicknesses, and private-label logo printing directly on the board or protective film.
Export Packaging
Fumigation-free wooden pallets, corner guards, heavy-duty shrink wrap, and custom carton labeling.
Minimum Order Quantity (MOQ)
1 x 20'GP container (mixed sizes and thicknesses supported).
Production Lead Time
15–25 days upon receipt of the official deposit.
FAQ
As one of the leading standard waterproof backer board manufacturers and suppliers in China, we warmly welcome you to buy advanced standard waterproof backer board made in China here from our factory. All customized products are with high quality and competitive price. Also, pricelist is available.
