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WPC Panel

WPC Panels for Interior and Exterior Architectural Applications

Wood-Plastic Composite (WPC) panels combine hardwood fibers with thermoplastic resins (HDPE or PVC) through high-pressure continuous extrusion. Designed as low-maintenance alternatives to natural timber, these engineered panels deliver moisture resistance, structural stability, and immunity to rot, termite attack, and splintering.

Production utilizes dual-screw extrusion systems with online calibration to maintain tight profile tolerances and uniform density across hollow, solid, fluted, and tongue-and-groove profiles. Second-generation 360-degree co-extrusion technology applies an impermeable polymer cap around the composite core, protecting exterior installations against UV degradation, staining, and surface scratching.

Bamboo Fiber WPC Interior Wall Panel
Material:Bamboo Fiber WPC
Fire Resistant Level: A1
Weight: 2-3KG/Square Meter
Use: Building Curtain Wall/Interior Decoration, Aerospace, New EnergyVehicle Battery Packs,...
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WPC Interior Wall Cladding
Material: WPC
Fire Resistant Level: A1
Weight: 2-5KG/Square Meter
Use: Building Curtain Wall/Interior Decoration, Aerospace, New EnergyVehicle Battery Packs, Industrial Equipment...
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WPC Wall Cladding Board
Material: WPC
Fire Resistant Level: A1
Weight: 5-10KG/Square Meter
Use: Building Curtain Wall/Interior Decoration, Aerospace, New EnergyVehicle Battery Packs, Industrial...
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UV-Resistant WPC Cladding Board
Material: WPC
Fire Resistant Level: A1
Weight: 5-10KG/Square Meter
Use: Building Curtain Wall/Interior Decoration, Aerospace, New EnergyVehicle Battery Packs, Industrial...
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Custom WPC Cladding & Decking
Material: WPC
Fire Resistant Level: A1
Weight: 5-10KG/Square Meter
Use: Building Curtain Wall/Interior Decoration, Aerospace, New EnergyVehicle Battery Packs, Industrial...
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WPC Interior Wall Panel
Material:Aluminum3003.5052
Fire Resistant Level: A1
Weight: 2-5KG/Square Meter
Use: Building Curtain Wall/Interior Decoration, Aerospace, New EnergyVehicle Battery Packs,...
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WPC Co-Extrusion Wall Cladding
Material:Aluminum3003.5052
Fire Resistant Level: A1
Weight: 2-5KG/Square Meter
Use: Building Curtain Wall/Interior Decoration, Aerospace, New EnergyVehicle Battery Packs,...
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WPC -Wall Panel
Composition: 50-60% wood/bamboo fiber + 30-40% PVC/PE/PP resin + 5-10% additives
Profile Cross-Section: Flat plank, V-groove plank, shiplap, custom profile
Standard Widths: 80, 100,...
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WPC Wall Panel
Product Name: WPC Wall Panel (Wood-Plastic Composite Fluted / Great Wall Panel)
Brand: CHAOEN

: Material Composition: Wood fiber 30–60% (bamboo/wood flour/rice husk) + PVC/PE resin...
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WPC Fluted Wall Panel
Product Name: WPC Fluted Wall Panel
Material: WPC
Fire Resistant Level: B2
Weight: 2-5KG/Square Meter
Use: Building Curtain Wall/Interior Decoration, Aerospace, New...
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4-Groove WPC Wall Cladding Board
Product Name: Aluminum Honeycomb Panel
Material: Aluminum3003.5052
Fire Resistant Level: A1
Weight: 2-5KG/Square Meter
Use: Building Curtain Wall/Interior Decoration,...
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WPC Waterproof Interior Door
Product Name: Waterproof Interior Door
Material: Aluminum3003.5052
Fire Resistant Level: A1
Weight: 2-5KG/Square Meter
Use: Building Curtain Wall/Interior Decoration,...
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Product Categories

Co-Extruded Exterior Wall Cladding:

Features an outer polymer shield surrounding a wood-PE core. Engineered for exterior facades, soffits, and rainscreens requiring fade resistance and low thermal expansion.

Interior Fluted and Great Wall Panels:

Lightweight PVC-based WPC profiles designed for commercial interior wall lining, feature walls, and acoustic baffles. Available in wood grain foil lamination or direct surface staining.

Hollow and Solid Decking Boards:

High-density HDPE composite boards for commercial walkways, residential patios, and pool surrounds. Anti-slip grooved or 3D embossed surface textures pass pendulum slip resistance standards.

Architectural Louvers and Pergola Beams:

Structural hollow profiles reinforced for sunshades, fencing systems, and exterior screen structures.

Materials and Specifications

Parameter	Exterior Grade (HDPE WPC)	Interior Grade (PVC WPC)
Base Polymer	30% - 35% High-Density Polyethylene	40% - 50% Polyvinyl Chloride
Fiber Content	55% - 60% Hardwood Fiber / Rice Husk	30% - 40% Wood Flour / Calcium Carbonate
Chemical Additives	10% UV Stabilizers, Colorants, Coupling Agents	10% Heat Stabilizers, Processing Aids, Lubricants
Density	1.30 g/cm3 - 1.40 g/cm3	0.85 g/cm3 - 1.05 g/cm3
Water Absorption Rate	< 1.0% (24h immersion, ISO 62)	< 0.5% (24h immersion)
Flexural Strength	>= 25 MPa (ISO 178)	>= 18 MPa (ISO 178)
Fire Reaction Rating	EN 13501-1 Class B-s1, d0	ASTM E84 Class A / EN 13501-1 Class B
Formaldehyde Emission	E0 Grade (EN 717-1 / CARB P2 compliant)	Non-detectable (ND)
Linear Thermal Expansion	<= 3.5 x 10^-5 / deg C	<= 4.0 x 10^-5 / deg C

Applications

Exterior Building Facades and Rainscreens:

Co-extruded wall cladding panels installed on metal or WPC joist systems provide ventilated exterior wall protection with UV resistance tested up to QUV 3000 hours.

Commercial Interior Accent Walls and Ceilings:

Interlocking tongue-and-groove fluted panels used in hotel lobbies, retail interiors, and office spaces to achieve timber-like aesthetics without maintenance.

Outdoor Decking and Pool Surrounds:

Weather-resistant boards engineered to withstand moisture, foot traffic, and temperature fluctuations between -40 deg C and +60 deg C without warping.

Sunshades, Pergolas, and Privacy Screens:

Hollow structural posts and louvers used in architectural shading systems to replace solid timber beams.

OEM and Customization Services

Custom Profile Extrusion:

Custom die tooling designed and tested within 15 days based on CAD drawings (.DWG, .STEP) for proprietary interlocking or clip systems.

Length and Precision Cutting:

Standard lengths of 2.2m, 2.9m, and 5.8m (optimized for 20ft and 40ft HQ container loading); custom inline cutting precision within +/- 2.0 mm.

Surface Finishing and Texturing:

Options include online 3D deep-embossing, wire brushing, sanding, high-definition PVC foil lamination, and co-extruded multi-color streaking.

Color Matching:

Custom color formulation according to RAL color codes or master sample matching, validated under spectrophotometer analysis.

Quality Control and Manufacturing Standards

Raw Material Moisture Control:

Wood fibers are dried to below 2% moisture content before melt compounding to prevent internal void formation and moisture pockets in the final composite.

Inline Profile Dimension Inspection:

Laser gauges measure wall thickness, tongue-and-groove clearance, and cross-sectional symmetry at the extruder outlet.

Thermal Shock and Expansion Testing:

Batch samples undergo accelerated thermal cycling (-20 deg C to +60 deg C) to verify dimensional stability and joint integrity.

Color Fastness and Xenon Arc Testing:

Accelerated weathering tests (ISO 4892-2) verify that Delta E color shift remains under 3.0 after 2000 hours of UV exposure.

Packaging and Logistics

Surface Protection:

Individual film wrapping or protective PE sleeves applied to decorative faces; protective foam corner guards on panel bundles.

Palletized Bundle Packing:

Panels stacked flat on fumigated plywood pallets or custom wooden runners designed for forklift unloading. Max bundle height capped at 1.1m to prevent bottom-layer crushing.

Container Loading Optimization:

Steel-strapped bundles wrapped in waterproof PE stretch film. Container end-stops and air bags installed to prevent cargo movement during transit.

FAQ

Q: What is the main structural difference between first-generation WPC and co-extruded WPC?

A: First-generation WPC features an exposed wood-plastic matrix vulnerable to oil stains, scratch damage, and gradual weathering. Co-extruded WPC includes a 360-degree acrylic/polyolefin outer shield molded over the composite core during extrusion, providing enhanced stain resistance, scratch resistance, and color retention.

Q: How do WPC panels handle thermal expansion and contraction during outdoor installation?

A: Composite materials expand and contract along their length with temperature changes. Installation guidelines require specific expansion gaps at butt joints and side clips (typically 3 mm - 5 mm depending on ambient temperature at installation) to prevent buckling or joint distortion.

Q: What fire safety certifications do your WPC cladding panels hold?

A: Exterior WPC cladding options are formulated with flame retardants to meet EN 13501-1 Class B-s1, d0 and ASTM E84 Class A performance. Test reports covering flame spread index (FSI) and smoke developed index (SDI) are available upon request.

Q: Can WPC panels be installed directly onto exterior masonry walls?

A: Direct mounting to raw masonry is not recommended. Panels should be attached to aluminum, steel, or treated WPC joists/furring strips spaced 300 mm to 400 mm on center. This creates a ventilated drainage cavity behind the cladding and allows proper clip attachment.

Q: What is the expected service life and warranty period for exterior WPC products?

A: Co-extruded exterior panels carry a 15-year to 25-year limited commercial warranty against structural rotting, splitting, and excessive fading, provided installation follows manufacturer joist-spacing and expansion-gap specifications.

Q: What is your standard Minimum Order Quantity (MOQ) and production lead time?

A: Standard profiles and stocked colors require an MOQ of 500 meters per profile. Custom colors or proprietary extrusion profiles require 2000 meters or 1x20ft container load. Production lead time is 15-20 business days following shop drawing approval and deposit receipt.

We're well-known as one of the leading wpc panel manufacturers and suppliers in China, also support custom service. Please feel free to wholesale high quality wpc panel made in China here from our factory. For more information, contact us now.

WPC Panel Outdoor, WPC Fluted Wall Panel, WPC Cladding Panel