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Co-extrusion decking is also called 'capped' or 'cover' decking using the latest technology co-extrusion. Before Co-extrusion decking, the composite decking was uncapped, but Co-extrusion WPC has a 'cover' that provides added protection against the elements and everyday living while the extruded surface is made of multi engineer plastic with an outer shell of plastic that completely encapsulates the board in an impermeable layer of protection from scratches, stain and fading. Co extrusion composite decking is the smart way to get a great-looking, long-lasting board. The shield and core are extruded simultaneously, so there are no adhesives or chemicals that are harmful to the environment.
Unlike inferior 'one-side capped' boards, Sundi's co-extrusion decking features a full 360-degree protective shell. This means even the grooves and the bottom of the board are shielded from moisture, preventing the internal core from swelling, rotting, or harboring mold. It is the ultimate 'fit and forget' solution for poolside and coastal environments.
| Property | Standard / Data |
| Composition | High-Density Shield + Wood Fiber Core |
| Water Absorption | < 0.5% (Superior Moisture Proof) |
| Slip Resistance | R10 - R11 Standard |
| Colors | Teak, Walnut, Ipe, Silver Grey, Charcoal |
| Standard Profiles | Hollow & Solid (Customizable) |
Natural surface and stable quality make the second generation co extrusion decking become more and more popular in the yard. Capped with high performance and moisture-resistant polymer, co-extrusion decking is free of stains and moisture. With a full series of accessories, you will find it is a joy to install this decking. It combines the advantages of wood and plastic, but reduces the need for repetitive and wasteful maintenance. To elevate your garden project, you can pair your high-performance deck with our WPC Pergola kits for a complete outdoor luxury experience.
| Features | 2nd Gen Co-extrusion Decking | 1st Gen Traditional Decking |
| Surface Protection | 360° Polymer Shield (Capped) | Uncapped (Exposed) |
| Stain Resistance | Ultra-High (Wine/Oil wipe off) | Moderate |
| Fade Resistance | Excellent (Anti-UV Grade 4-5) | Grade 3 |
| Cleaning | Water & Soap only | Periodic deep cleaning |
| Service Life | 20 - 25 Years | 10 - 15 Years |
Although we have dedicated ourselves to high-performance WPC decking for over 10 years, our pursuit of technology and performance never ends. We treat every client as a long-term partner, committed to helping you decorate a more beautiful yard and make your WPC decking projects more stable and attractive.
As a leading WPC decking board manufacturer, Sundi is your trusted source for both exceptional quality and clear value. View our full range of WPC products and manufacturing certifications to see how our 60 years of expertise can benefit your next project. Explore our detailed co-extrusion WPC decking pricelist to discover the superior protection and aesthetics of our capped composite boards, or browse our current selection of WPC decking for sale to find the perfect solution for your space.
Yes. While the initial investment is higher, co-extrusion decking saves you money by eliminating the need for annual oiling, staining, or sealing. Its 25-year lifespan and superior fade resistance make it the most cost-effective choice for premium residential and commercial projects.
Our second-generation polymer shield is engineered with heat-reflective pigments to maintain a lower surface temperature than traditional dark-colored WPC or solid wood, making it barefoot-friendly for balconies and pool decks.
Absolutely. As a leading WPC decking board manufacturer, we provide free sample kits (including various colors and textures) to help contractors and architects verify the quality before placing wholesale orders.
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