Introduction to the production process of WPC foam panel
Introduction to WPC Wood Veneer Panel Production Process
1. Raw Material Preparation
Wood fiber / wood powder: Typically 40–60%, sourced from sawdust, wood chips, or agricultural residues.
Plastic base: Commonly PVC, PE, or PP.
Additives: Stabilizers, lubricants, coupling agents, and coloring agents to improve strength, durability, and appearance.
👉 The wood powder is dried to a low moisture content (below 1%) to avoid bubbles during extrusion.
2. Mixing & Compounding
Raw materials are blended in high-speed mixers.
The mixture must be uniform to ensure proper bonding between wood and plastic.
Some manufacturers use twin-screw extruders for compounding into pellets before panel production.
3. Extrusion Molding
The mixture is fed into an extruder machine.
Under high temperature (160–200°C) and pressure, wood fibers and plastic are fused together.
The material passes through a mold to form flat WPC board panels.
👉 Extrusion ensures high density, stability, and durability.
4. Surface Calibration & Cooling
Panels are cooled through a water tank and calibrated to ensure correct thickness and dimensions.
Surface can be pre-treated for better adhesion of veneer layers.
5. Wood Veneer Lamination
Natural wood veneer or decorative PVC/film layer is laminated onto the WPC panel surface.
Techniques:
Hot pressing (for wood veneer)
PUR hot melt glue lamination (for films, foils, or decorative sheets)
👉 This step provides a natural wood look while keeping WPC’s waterproof and anti-termite properties.
6. Surface Finishing
Sanding, polishing, or texturing may be applied.
Optional treatments: UV coating, embossing, or painting for higher aesthetics.
7. Cutting & Quality Inspection
Panels are cut to standard sizes (e.g., 1220×2440mm).
Inspections include:
Surface flatness
Bonding strength
Moisture resistance
Color consistency
8. Packaging & Shipping
Panels are stacked, edge-protected, shrink-wrapped, and packed on pallets for safe transportation.