Functional Backer Board
Product Overview
Extruded polystyrene (XPS) core tile backer board, reinforced with alkali-resistant fiberglass mesh embedded in a polymer-modified cementitious surface. Designed for direct tile, stone, or mosaic installation in wet areas. Engineered as a fully compatible, high-performance alternative to major European and North American wet room systems (such as Wedi, Schluter-KERDI-BOARD, and JACKOBOARD), replacing traditional cement backer boards and plywood in high-moisture commercial and residential environments.
Core Material
Extruded Polystyrene (XPS)
Surface Layer
Polymer Cement + Glass Fiber Mesh (Both Sides)
Standard Thickness
6mm, 10mm, 12.5mm, 20mm, 50mm
Standard Dimensions
1200 x 600mm, 2400 x 600mm (Custom sizes available)
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Key Features
100% Waterproof Core
Closed-cell XPS structure prevents water penetration and vapor transmission, eliminating mold and mildew risks behind tiles.
01
High Compressive Strength
Withstands up to 300 kPa (30 t/m2) under heavy foot traffic and tiled surfaces without compression or deflection.
02
Thermal Insulation
Low thermal conductivity (lambda = 0.035 W/m·K) improves energy efficiency when installed with underfloor heating systems.
03
Lightweight & Easy to Handle
Weighs approximately 3 to 6 kg/m2, allowing single-worker installation and reducing dead load on building structures.
04
Direct Tile Application
Cementitious surface accepts polymer-modified thin-set mortar immediately without additional priming or waterproofing coats.
05
Technical Specifications
|
Property |
Test Standard |
Value / Specification |
|
Core Density |
ISO 845 |
35 +/- 3 kg/m3 |
|
Compressive Strength (at 10% deformation) |
EN 826 / ASTM D1621 |
>= 300 kPa |
|
Flexural Strength |
EN 12089 |
>= 400 kPa |
|
Water Absorption (by volume) |
ISO 2896 |
< 1.0% |
|
Water Vapor Transmission Rate |
ASTM E96 |
< 1.5 perm |
|
Thermal Conductivity (lambda) |
EN 12667 |
0.035 W/m·K |
|
Service Temperature Range |
— |
-50°C to +75°C |
|
Reaction to Fire |
EN 13501-1 |
Euroclass E |
|
Thickness Tolerance |
EN 823 |
+/- 0.5 mm |
|
Squareness / Edge Straightness |
EN 824 |
+/- 1.5 mm/m |
Surface Coating: 0.8mm dual-layer polymer mortar with alkali-resistant glass fiber mesh (160 g/m2) prevents surface cracking and ensures high pull-off adhesion strength (>= 0.5 MPa).
Core Extrusion: Continuous extrusion process ensures homogeneous cell structure with zero voids, preventing internal moisture accumulation.
Applications
Shower Surrounds & Wet Rooms
Direct substrate for ceramic, porcelain, and natural stone tiles in residential and commercial bathrooms.
Tile Backer for Bathtub Decks
Moisture-resistant framing support for custom tub surrounds and vanity countertops.
Underfloor Heating Substrate
Installed over concrete or wood subfloors to reduce upward heat loss and accelerate warm-up time.
Prefabricated Modular Bathroom Pods
Lightweight partition and wall framing substrates for modular construction.
Size & Customization Options
|
Thickness (mm) |
Width (mm) |
Length (mm) |
Weight (kg/pc) |
Packaging (Pcs/Pallet) |
|
6.0 |
600 |
1200 |
2.1 |
100 |
|
10.0 |
600 |
1200 |
2.6 |
60 |
|
12.5 |
600 |
1200 |
3.0 |
50 |
|
20.0 |
600 |
1200 |
3.9 |
30 |
|
50.0 |
600 |
1200 |
7.2 |
12 |
Customization Capabilities:
- Dimensions: Non-standard lengths up to 3000mm available upon request.
- Grooved Boards: Pre-scored folding boards for curved walls, pipe boxing, and radius applications.
- OEM Branding: Custom print on protective film and pallet labeling.
Complete Installation Accessory Kits (Available for One-Stop Sourcing):
- Stainless steel / galvanized installation screws and plastic insulation washers.
- Alkali-resistant waterproof joint sealing tapes (100mm x 50m).
- Pre-formed internal/external corners and waterproof pipe collars.
Quality Control
Raw Material Inspection
100% virgin polystyrene resin and high-grade polymer additives tested for melt flow index and tensile properties prior to production.
In-Line Monitoring
Automated laser thickness gauges check board dimensions continuously during extrusion. Pull-off adhesion tests conducted every 2 hours per production line.
Batch Traceability
Each pallet is labeled with a production batch barcode indicating date, shift, and raw material lot number.
Certificates Available
ISO 9001:2015, CE Certification, ASTM compliance test reports issued by third-party labs (SGS/TUV).
Packaging & Shipping
Palletization: Boards are stacked flat on Fumigation-Free Wooden Pallets or Heat-Treated Pallets (ISPM 15 compliant), wrapped with heavy-duty stretch film and corner edge protectors to prevent transit damage.
Container Loading Optimization:
- 20'GP Container: Approx. 420 m2 to 550 m2 (depending on thickness mix).
- 40'HQ Container: Approx. 1100 m2 to 1450 m2.
- Port of Loading: Ningbo / Shanghai, China.
Frequently Asked Questions
Request a Quote
To receive a detailed FOB/CIF quotation tailored to your volume requirements, please provide the following details:
Board thickness and dimensions required.
Total quantity (square meters or container load).
Whether full installation accessory kits (washers, tapes, corners) are required.
Destination port / zip code for shipping cost calculation.
Special packaging or private label requirements.
As one of the leading functional backer board manufacturers and suppliers in China, we warmly welcome you to buy advanced functional backer board made in China here from our factory. All customized products are with high quality and competitive price. Also, pricelist is available.
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