Explore our premium grade exterior and interior composite product series engineered for extreme weatherability and structural integrity.
Linyi Rich New Materials Co., Ltd. is a premier modern enterprise specializing in the integrated research, development, continuous extrusion manufacturing, and global export of advanced eco-friendly composite building materials. Located in the heart of China’s timber and polymer manufacturing hub—Linyi City, Shandong Province—our manufacturing complex spans over 100,000 square meters of intelligent infrastructure.
With a staff of over 300 professional engineers and material scientists, we operate state-of-the-art dual-phase co-extrusion technology designed to meet the rigorous physical and environmental demands of modern architecture across Europe, North America, the Middle East, and Southeast Asia.
Traditional first-generation Wood-Plastic Composites (WPC) suffered from surface oxidation, color fading, thermal deformation, and susceptibility to moisture ingress over extended exposure to UV radiation and thermal cycles. As a leading China WPC Co-Extrusion Manufacturer, Linyi Rich New Materials has pioneered multi-layer co-extrusion technology, engineered to eliminate these structural vulnerabilities at a molecular level.
Our 2nd and 3rd Generation Co-Extrusion profiles feature a high-density, 360-degree protective outer shield composed of modified Acrylonitrile Styrene Acrylate (ASA) or engineering-grade Polyethylene (HDPE) embedded with nano-scale UV inhibitors and antioxidant agents. This outer layer is co-extruded simultaneously with the inner core under extreme thermal pressures, creating an atomic-level fusion bond that prevents peeling or delamination.
The internal core consists of 60% ultra-fine hardwood fiber powder (mesh size > 80), 30% recycled high-density polyethylene (HDPE), and 10% non-toxic chemical additives, including coupling agents, lubricants, and thermal stabilizers. This engineered micro-cellular structure provides superior flexural strength, high modulus of elasticity, and thermal expansion control.
Because the outer capping layer possesses near-zero porosity (< 0.1% water absorption), moisture cannot penetrate into the wood-fiber matrix. This permanently eliminates rot, fungal growth, swell-induced warping, and structural decay—making co-extruded WPC ideal for extreme marine, tropical, and sub-zero freeze-thaw environments.
| Performance Characteristic | 1st Generation Monolithic WPC | 2nd Gen Capped Co-Extrusion WPC | 3rd Gen Nano-Enhanced ASA Co-Extrusion |
|---|---|---|---|
| Outer Protection Shell | None (Exposed Wood/Plastic Matrix) | 360° HDPE Polymer Shield | Full Co-Extruded ASA Weatherability Shield |
| UV Resistance & Color Retention | Fades 15-30% within 12 Months | ΔE < 5 over 10 Years | Ultra-stable (ΔE < 2 over 15 Years) |
| Water Absorption Rate | 1.5% - 4.0% (Risk of swelling) | < 0.2% (Moisture Proof) | < 0.05% (Impermeable) |
| Stain & Scratch Resistance | Low (Porous surface absorbs oils) | High (Wipe-clean surface) | Maximum (Resistant to harsh chemicals & scratch) |
| Thermal Expansion Coeff. | High (~0.09 mm/m·°C) | Moderate (~0.04 mm/m·°C) | Ultra-Low (< 0.02 mm/m·°C) |
| Expected Service Life | 5 - 10 Years | 20 - 25 Years | 30+ Years (Lifetime Commercial Warranty) |
The international market for architectural wood-plastic composites is undergoing a fundamental structural transition. Driven by stringent deforestation regulations, net-zero carbon directives, and rising maintenance labor costs in developed economies, architects and commercial developers are replacing natural timber with ultra-durable composite materials.
Regulatory bodies such as the EU Green Deal and US Green Building Council (LEED) are enforcing low-carbon building envelopes. Co-extruded WPC products manufactured by Linyi Rich leverage 100% recycled polymer carriers and rapidly renewable hardwood scrap, reducing life-cycle carbon footprints by up to 68% compared to traditional treated lumber.
While natural timber requires annual sealing, painting, and fungicide treatments, co-extruded WPC profiles demand near-zero maintenance. Over a 15-year lifecycle, commercial operators save up to $140 per square meter in labor and maintenance expenditure.
Modern facade systems require deep structural flexibility, custom colorways, multi-tonal wood grain textures, and fire-retardant performance (Bfl-s1 / Class B). Advanced Chinese co-extrusion factories provide the tooling velocity necessary to meet these tailored specifications.
Our multi-extrusion WPC and polymer panel solutions are engineered for diverse climate conditions and specialized load-bearing environments across global markets.
Designed to withstand intense solar radiation, driving rain, and wind loads up to Typhoon Category 12. Our co-extruded exterior wall cladding panels feature ventilation channel backing to prevent interstitial condensation, protecting structural sub-frames.
Utilized in oceanfront boardwalks, luxury resort pool decks, and public plazas. The co-extruded non-slip capping layer achieves an R11 slip rating under wet testing standards (DIN 51130), ensuring public safety and long-term surface resistance against abrasion.
Integrating wood slat aesthetic features with sound-absorbing recycled PET felt backings. Ideal for corporate auditoriums, hotel lobbies, and residential media rooms requiring Noise Reduction Coefficients (NRC) up to 0.85.
Resistant to saltwater corrosion, marine borers, and chemical treatments. Co-extruded structural profiles do not leach toxic chemicals into aquatic ecosystems, aligning with international environmental protection protocols.
Interlocking tongue-and-groove co-extrusion fencing systems offer privacy, acoustic dampening from road noise, and double-sided aesthetic finishes that require zero staining or painting throughout their lifecycle.
Operating from Linyi City—China’s strategic epicentre for wood processing and supply chain logistics—Linyi Rich New Materials offers unmatched operational scalability, raw material security, and rapid fulfillment dynamics.
Our manufacturing floor hosts 120 continuous WPC grating and profile extrusion lines alongside 40 customized outdoor co-extrusion systems. Yielding an annual volume exceeding 12 million square meters, we guarantee stable lead times even during peak global construction quarters.
Unlike downstream assemblers, we formulate and compound our polymer-wood resins on-site. By controlling HDPE virgin/recycled ratios, micro-wood flour drying levels, and additive dispersing, we achieve batch-to-batch color stability and tensile consistency impossible for smaller suppliers.
Situated within short transit radii of Qingdao Port and Rizhao Port, our logistics team optimizes container loading, export customs clearance, and pallet packaging, cutting shipping transit times and reducing drayage overheads for global distributors.
Our facility houses an independent mold design laboratory equipped with precision CNC engraving machinery. We transform CAD architectural drawings into production-ready extrusion dies within 14 working days, facilitating custom profiles for tier-1 building brands.
To maintain absolute reliability across overseas markets, Linyi Rich operates under strict ISO 9001 Quality Management Systems, ISO 14001 Environmental Standards, and third-party laboratory verification (Intertek, SGS, TÜV Rheinland).
Achieves Euroclass B-s1, d0 flame retardancy ratings, exhibiting minimal smoke development and zero flaming droplets during thermal degradation testing.
Certified zero formaldehyde emissions (E0 Grade) and compliance with EU REACH Regulation 1907/2006 for Heavy Metals and Phthalate content.
Subjected to 3,000-hour Accelerated Xenon Arc Weathering (ASTM G155), showing no micro-cracking, chalking, or structural degradation.
As part of our commitment to leading the green building transition, Linyi Rich is actively deploying next-generation material science advancements across our product lines.
Replacing traditional fossil-derived polyethylene resins with bio-attributed polymers synthesized from agricultural byproduct lipids, targeting a 100% net-zero carbon core profile.
Integrating infrared-reflective nano-pigments into the co-extruded outer capping shield to lower surface deck temperatures under direct tropical sunlight by 8°C to 12°C.
Pioneering post-consumer composite take-back programs that re-grind used co-extruded boards into structural core filler without compromising tensile modulus.
Expert answers to common engineering, procurement, and specification inquiries regarding WPC Co-extrusion products.
Discover our expanded catalog of interior panels, outdoor decking, UV marble sheets, and acoustic systems.
Rich New Materials