Introduction
WPC Co-Extrusion Board is an advanced structural and cladding material engineered by fusing a natural wood-fiber core with an impenetrable outer polymer shield through simultaneous high-temperature extrusion.
Technical Specifications
|
Parameter |
Specification |
|
Core Density |
≥1.30 g/cm³ |
|
HDPE Shell Thickness |
0.5–0.7 mm |
|
Flexural Strength |
≥30 MPa (ASTM D790) |
|
Flexural Modulus |
≥3500 MPa (ASTM D790) |
|
Water Absorption |
≤0.5% (24h immersion, EN 317) |
|
Scratch Resistance |
Up to 20 N resistance |
|
Slip Resistance |
DIN 51130 R11; Wet PTV ≥36 |
|
Material Composition |
35% recycled HDPE + 55% wood fiber + 10% additives |
|
Raw Materials |
Certified recycled HDPE; 80-mesh poplar wood flour |
|
Environmental Standards |
Lead-free, VOC-free, formaldehyde-free; halogen-free flame retardant |
Architectural Applications
Commercial Infrastructure: Engineered for waterfront walkways, seaside piers, and public docks, reducing long-term maintenance costs in high-salinity coastal environments.
Building Facades: Vertical exterior cladding panels engineered for multi-story corporate, retail, and office structural envelopes.
Municipal Landscapes: Heavy-duty public park benches, retaining barriers, and high-foot-traffic urban landscaping walkways.
OEM Customization
|
Tooling Die Engineering |
Custom profile extrusion die design and tooling fabrication completed within 15 working days. |
|
Pre-Production Prototyping |
Cross-section samples provided for structural layout and dimension approval before steel die milling. |
|
Color Matching |
Color development based on RAL or Pantone matrices with a strict variance threshold of ΔE < 1.0. |
|
Surface Textures |
Options include deep-grain wood replicates, linear grooving, and micro-sanded matte finishes. |
|
Flexible Length Extrusions |
Continuous length adjustments from 2.20 to 5.80 meters. |
Manufacturing Capacity
With 12 automated co-extrusion lines, the facility ensures a consistent monthly output of 2,100 metric tons for contract orders.
Standard production lead time is 14 to 21 days after deposit confirmation, extending to 21 to 28 days during peak global purchasing quarters.
Supply chain security is supported by a standard 100-ton raw material reserve to ensure stable production and continuous supply.
Commercial Terms
MOQ: 1 x 20ft GP container per standard profile (mixed colors acceptable upon evaluation).
Container Loading Optimization: Steel-reinforced packaging holding exactly 12 standard pallets per 40ft HC container, utilizing the 26-metric-ton maximum legal limit.
Sample Policy: Free samples available via courier freight collect/prepaid, with freight cost refunded upon first contract signing.
Payment Terms: T/T (30% deposit, 70% against B/L copy) or 100% Irrevocable L/C at sight.
Incoterms Available: FOB (Main China Ports), CIF (Designated Destination Port), or DDP.
Warranties
- A 5-Year Commercial Warranty covers rotting, splitting, cracking, and insect infestation under exterior use conditions.
- The Claim Response ensures quality inquiries are handled within 72 hours through a standardized component replacement and compensation workflow.
- Installation System Matching includes structural joists (30cm to 40cm spans), Marine Grade 316 stainless steel clips, start/end trims, and technical CAD/PDF installation guides.
Compliance
CE Certification
Certified under EN 15534 standards for wood-plastic composites in external flooring and wall cladding.
ASTM Testing
Intertek-tested to meet ASTM D7031 and ASTM D7032 requirements for load-bearing building components.
EU REACH Compliance
Registered under EU REACH regulations, certifying zero Chemical Substances of Very High Concern (SVHC).
Fire Propagation Ratings
Achieves Euroclass B-s1, d0 flame retardant classification and Class A flame spread indices under ASTM E84 testing.
Environmental Sourcing
Full chain-of-custody tracking available via FSC-certified wood fiber inputs upon project contract specification.
FAQ
Q: What outdoor projects have used your WPC Co-Extrusion Board?
A: Our WPC Co-Extrusion Board has been supplied for outdoor applications, including waterfront walkways, commercial terraces, and municipal landscaping projects. Project references with application details, installation conditions, and material quantities can be provided for qualified buyers.
Q: How does the co-extrusion layer improve outdoor durability compared with traditional WPC boards?
A: The HDPE protective shell creates an additional barrier against moisture penetration, stains, scratches, and UV exposure. It helps maintain surface appearance and structural stability in demanding outdoor environments.
Q: What information can you provide to verify material reliability before bulk orders?
A: Qualified buyers can request technical datasheets, testing reports, production samples, and customized project evaluation documents before confirming large-volume orders.
Q: Can you provide customized WPC profiles for specific architectural projects?
A: Yes. We support custom profile development, including cross-section design, surface texture selection, color matching, and length customization for commercial and architectural projects.
Q: Can the CE or Intertek test certificate for a specific production batch be independently verified?
A: Yes, each certificate is linked to the production lot number, allowing buyers to cross-check test results directly with the issuing body's records upon request.
Q: How does the slip resistance rating perform over years of foot traffic and weathering?
A: Field monitoring on public walkway installations shows the wet PTV rating remains above 33 after 3 years of continuous foot traffic and weather exposure, staying within the DIN 51130 R11 compliant range.