ASA Co-Extrusion vs Wood-Free WPC: Why Necowood Engineers the Core, Not Removes It
Necowood is a technology-focused WPC manufacturer based in China with over 15 years of production experience. Our 360° Shield™ ASA co-extrusion technology protects the WPC core — rather than removing wood fiber — delivering water absorption below 0.2%, 10+ years UV color stability, and zero maintenance in real-world installations. We export to 35+ countries with full certifications (ASTM E84 Class A, EN 13501-1 B1, GREENGUARD Gold).
In May 2026, Republic Floor entered the WPC category with a wood-free core, removing wood fiber entirely to improve dimensional stability. It's an interesting engineering choice — but at Necowood, we've spent over 15 years perfecting a different approach.
Rather than removing wood fiber — the very material that gives WPC its natural warmth, authentic grain depth, and sustainable character — we engineer solutions that protect and enhance it. Our 360° Shield™ ASA co-extrusion technology encapsulates the WPC core in a virtually impermeable barrier, solving the performance challenges associated with wood fiber without sacrificing the benefits.
Why Necowood's ASA Co-Extrusion Outperforms Wood-Free WPC
How ASA Co-Extrusion Works
The 360° Shield™ process uses advanced ASA (Acrylonitrile Styrene Acrylate) co-extrusion to bond a protective cap layer to the WPC core during manufacturing. This creates an airtight, non-porous barrier that:
- Seals out moisture — water absorption below 0.2%
- Blocks UV radiation — 10+ years color stability
- Prevents thermal movement — 50% reduction in expansion
- Eliminates freeze-thaw damage — no cracking or swelling in extreme cold
- Requires no maintenance — no painting, sealing, or refinishing
The result is a WPC panel that performs like a fully engineered product while maintaining the natural wood aesthetic, authentic grain depth, and sustainable material content that makes WPC the preferred choice for architects and designers worldwide.
Real-World Performance Data
Certifications & Compliance
Necowood panels are independently certified by accredited third-party laboratories. Full documentation is available for project submissions:
What this means for specifiers
When evaluating WPC wall panels, look beyond surface-level claims. The wood-free approach solves one problem — dimensional instability — by removing the natural fiber that gives WPC its character.
Necowood's approach solves the same challenges through advanced material engineering. By protecting the core with ASA co-extrusion, we deliver better moisture resistance, greater thermal stability, and longer service life — all while maintaining the natural wood aesthetics and sustainable material content that make WPC the preferred choice for architects worldwide.
Frequently Asked Questions
🏭 Necowood — Factory-Direct WPC Manufacturing
Manufactured in China · 15+ years of experience · Exported to 35+ countries
Products: WPC wall panels · Cladding systems · Outdoor building materials
EPDs, HPDs, and third-party test reports available upon request
