Introduction
Phenolic plywood is a heavy-duty concrete formwork material manufactured from multi-layered wood veneers bonded with moisture-resistant phenolic resin and faced with a hard, smooth phenolic film on both sides.
Product Specifications
|
Parameter |
Specification |
|
Panel Size |
1220 × 2440 mm, 1250 × 2500 mm |
|
Thickness |
12, 15, 18, 21 mm (±0.5 mm) |
|
Core |
100% solid core, no voids |
|
Glue Bond |
WBP phenolic resin, 72-hour boil proof |
|
Surface |
Dual-sided 240 g/m² phenolic film |
|
Density |
640–680 kg/m³ |
|
Strength |
≥25 MPa bending strength (EN 310) |
|
Reuse Life |
20–25 pouring cycles |
|
Edge Seal |
Double-coated waterproof acrylic |
Core Features
Alkaline Resistance (pH 12–14)
The 240g/m² phenolic surface protects the wood from corrosive fresh concrete, preventing surface blistering.
Moisture-Induced Swelling < 4.5%
Thickness expansion stays below 4.5% after 24-hour water immersion. This prevents edge distortion.
Deflection Control (≥5500 MPa)
High bending elasticity minimizes bulging and deformation under heavy hydrostatic concrete loads.
Applications & Site Scenarios
Heavy Infrastructure & System Formwork
Engineered for high hydrostatic pressures in vertical and horizontal forming for high-rise cores, bridges, dams, and modular steel/aluminum frame systems.
Precast Concrete Manufacturing
Used as high-cycle casting bed liners within precast factories for fair-faced architectural concrete panels and structural retaining walls.
OEM & Custom Manufacturing
Custom Dimensions & Thickness: Oversized panels up to 1500×3000 mm and thicknesses from 9mm to 35mm (in 1mm increments) tailored to project blueprints.
Configurable Veneer Matrix: Available in 100% birch, combi-core, or eucalyptus to match specific mechanical performance specifications.
Phenolic Film Options: Selectable surface treatments at 120g/m², 165g/m², or 240g/m² with custom private label logo printing.
CNC Precision Machining: Factory-direct panel pre-drilling and countersunk profiling for rivet and bolt holes according to structural engineering drawings.
Quality Control
Two-Stage Hot-Press Process: Formed via a secondary high-pressure hot press at 130°C for complete thermal curing of WBP phenolic glue.
100% Ultrasonic Scanning: Every production batch passes through inline ultrasonic scanners to detect and reject panels with internal air pockets or core voids.
Calibrated Sanding: Both faces are sanded to a strict thickness tolerance within ±0.5 mm.
Batch Traceability Coding: Each panel is stamped with a permanent ID linked to raw material logs and pressure-test QC reports.
Supply Capability
25,000 m³ Annual Capacity
Supported by automated production lines to ensure a stable, continuous supply for international distributors and mega-projects.
Export Packaging
Secured on solid wood skids, reinforced with 8 steel straps, protected by 4mm structural edge guards, and sealed in 150-micron UV-resistant shrink wrap.
Optimized Container Payload
Configured for 40ft HQ containers (18 to 20 pallets, up to 21.5 metric tons) to minimize ocean freight costs per cubic meter.
Lead Time
Standard 1220×2440×18 mm orders are ready for port dispatch within 14 business days.
Payment Terms
T/T (30% deposit, 70% balance before shipment) or irrevocable L/C at sight for qualified orders.
Incoterms
EXW, FOB, CFR, and CIF are available based on your preferred shipping arrangement.
FAQ
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