Waterproof Bathroom Wall Backer Board

Engineered specifically for wet-area wall systems, our waterproof tile backer board features a closed-cell extruded polystyrene (XPS) core bonded with polymer-modified cement coatings and alkali-resistant fiberglass mesh on both sides. It provides a dimensionally stable, lightweight substrate designed for direct ceramic, porcelain, and natural stone tile installation in residential, commercial, and hospitality projects.

1. 100% Moisture-Resistant XPS Core
The closed-cell structure of the XPS foam core yields an extremely low water absorption rate. Unlike traditional gypsum or fiber cement boards that retain moisture and degrade over time, this core prevents water penetration behind tiled surfaces.
Applications: Ideal for shower walls, wet rooms, steam rooms, and commercial washrooms.
Benefits: Eliminates swelling, softening, and mold growth, significantly reducing long-term warranty claims for contractors.

2. Reduced Weight for Faster Installation
Weighing roughly 70–80% less than standard cement boards, the low density of the XPS core simplifies on-site material handling and reduces physical fatigue.
Efficiency: Installers can easily lift, position, and fasten large panels.
Logistics: Lowers transportation freight costs and streamlines warehouse storage.

3. High Mechanical Bond Strength
Both faces feature a textured, polymer-modified cement layer reinforced with alkali-resistant fiberglass mesh.
Adhesion: Delivers high mechanical pull-out and shear bond strength for thin-set mortars, epoxy adhesives, and tile mastics.
Stability: Restricts substrate shifting under continuous thermal and moisture cycling, preventing grout cracking.

4. High Compressive Strength Under Load
Despite its lightweight profile, the dense XPS foam core provides robust compressive resistance to distribute wall fixtures, heavy natural stone, and tile loads.
Durability: Resists surface indentation, delamination, and structural deformation under standard commercial wall loadings.

5. Clean, Dust-Free Cutting with a Utility Knife
Panels can be cut directly on the job site without heavy power saws or silica-dust-generating equipment.
Method: Score the cement surface with a standard utility knife and snap the board cleanly along the line.
Advantage: Enables precise fitting around pipes, fixtures, and corners while maintaining a cleaner work environment.

6. Built-In Thermal Insulation
The closed-cell foam provides continuous thermal insulation that traditional cement boards lack, minimizing thermal bridging through exterior or partition bathroom walls.
Use Cases: Well-suited for energy-efficient buildings, heated wall assemblies, and cold-climate construction.

Multi-Layer Construction

1. Precision Production Process & Standards
Certifications: Manufactured under strict quality management systems compliant with ISO9001 and CE standards.
Laminating: Cement coatings and fiberglass reinforcement are mechanically bonded to the XPS core under regulated pressure and temperature to prevent delamination.
Batch Inspection: Production lines undergo strict routine checks measuring thickness tolerances, board flatness, squareness, and surface bond integrity.

2. Supply Chain Stability & OEM Services
Production Capacity: Stable monthly output exceeding 100,000 m2, ensuring reliable fulfillment for high-volume bulk orders and large-scale construction projects.
Logistics & Loading: Optimized export pallet configurations maximize 40'HQ container utilization to lower shipping costs.
OEM & Custom Manufacturing: We support complete contract manufacturing for international distributors and building brands, including:

• Tailored XPS foam densities and panel dimensions
• Custom edge profiling (e.g., rabbeted/lapped joints)
• Private label packaging, printed branding, and customized carton labels

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