Co-extruded WPC Decking
Co-Extrusion WPC Composite Decking: Engineered with a protective outer layer, providing superior durability, fade resistance, and long-lasting performance.
Co-extrusion WPC (wood-plastic composite) decking utilizes advanced manufacturing technology to bond a high-performance polymer cap layer (HDPE/PVC reinforced with UV stabilizers and alumina trihydrate) directly to a structural wood-plastic core during extrusion. This seamless integration creates a monolithic profile with enhanced durability (Taber abrasion resistance ≥3,000 cycles), reduced water absorption (<0.8%), and superior fade resistance (ΔE ≤2.5 after 3,000 hours of UV exposure). The dual-layer design eliminates delamination risks while providing a low-maintenance, splinter-free surface rated for commercial traffic loads up to 1,800N.
Co-extrusion WPC features a multi-layer design: a polymer-rich cap layer for UV/moisture resistance and a structural core for load-bearing strength. Traditional WPC uses a single homogeneous blend, making it prone to swelling, fading, and surface damage.
The 0.6–1.5mm cap layer contains UV stabilizers (Hindered Amine Light Stabilizers) and inorganic pigments, reducing color fade to ΔE <3 after 3,000 hours of UV exposure. Scratch-resistant additives like alumina trihydrate (ATH) achieve a Taber abrasion rating of ≥3,000 cycles.
Yes. Its low thermal expansion coefficient (0.06–0.09% per 10°C) and high-density core (1.1–1.3g/cm³) prevent warping or cracking in temperatures as low as -40°F (-40°C).
Absolutely. The cap layer’s non-porous structure resists chlorine, saltwater, and humidity. Independent testing shows 0% corrosion after 1,000 hours of ASTM B117 salt spray exposure.
With a flexural strength of 35–45MPa (EN 310), it supports up to 1,800N indentation loads, exceeding ADA requirements for commercial spaces. Properly installed, it handles heavy furniture and foot traffic.
No. Unlike wood, co-extrusion WPC needs no staining, sealing, or sanding. Occasional cleaning with mild soap and water maintains its appearance.
or 20mm-thick boards, use 16" (406mm) on-center spacing; 12" (305mm) for 25mm+ profiles. Always follow manufacturer guidelines for load distribution.
Co-extrusion WPC costs 10–15% less than PVC while offering comparable UV resistance. Its wood-fiber core provides better dimensional stability (50% lower thermal expansion than PVC).
Yes. It contains ≥85% recycled materials (wood flour and post-industrial plastics) and is fully recyclable. VOC emissions are ≤50μg/m³, meeting CDPH v1.2 indoor air quality standards.
Most manufacturers provide 25–30 year limited warranties against fading, staining, and structural defects, backed by ASTM/ISO testing data.
