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| After-sales Service: | 24 Hours Online Service |
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| Warranty: | 1 Year |
| Material: | Poplar |
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Audited Supplier Audited by an independent third-party inspection agency
| Product Name | Plywood |
| Model No.: | SMP-12 |
| Size: | 1220*2440mm/customized |
| Density: | 530kg / m3 |
| Thickness: | Customized |
| Moisture: | Less than11% |
| Brand Name : | Shengmao |
| Grade: | AA/AB |
| Usage: | furniture panels / cabinet parts / boxes/ crafts/surfboards/snowboards |
| Packing: | Pallet |
| MOQ: | 40HQ |
| Delivery Time: | 15 -20 days after getting deposit. |
| Payment Terms: | T/T , L/C at sight |
Plywood is a manufactured wood panel product made by bonding together three or more thin layers of wood veneer (called plies or veneers). The adjacent plies are arranged with their wood grain rotated up to 90 degrees to one another. This cross-graining structure significantly improves the panel's dimensional stability, strength, and resistance to warping compared to solid wood.
The core principle of plywood manufacturing is "symmetry" and "cross-graining," which typically results in an odd number of plies (e.g., 3-ply, 5-ply, 7-ply).
| Classification Basis | Main Types | Key Characteristics / Application Notes |
|---|---|---|
| By Moisture Resistance (Bonding Class) | Class I (NQF/BWR) - Weather & Boil Proof | Uses phenol-formaldehyde (PF) resin. Suitable for exterior and humid conditions (e.g., concrete formwork, marine applications). |
| Class II (NS/MR) - Water Resistant | Uses melamine-urea-formaldehyde (MUF) or high-grade urea-formaldehyde (UF) resin. Resists cold water and short-term hot water exposure (e.g., furniture, vehicle bodies). | |
| Class III (NC/INT) - Moisture Resistant | Standard UF resin. For interior, dry conditions (e.g., indoor furniture, general construction). | |
| Class IV (BNC) - Non-Moisture Resistant | For interior use in dry environments only (e.g., packaging, non-structural uses). | |
| By Structure & Core Material | Veneer Core Plywood | Traditional type, core and face layers are all wood veneer. |
| Composite Core Plywood | Core is non-veneer material like MDF or Particleboard, with veneer faces. Better for stability and smooth surfaces. | |
| Blockboard (Lumber Core) | Core made of solid wood strips, faced with veneers. Used for door cores, furniture frames. | |
| Overlaid Plywood | Surfaces are overlaid with decorative film, resin-impregnated paper (e.g., Melamine Faced Plywood), or natural wood veneer for finish. | |
| By Functional Purpose | Special Purpose Plywood | Includes Fire-Retardant (FR) Plywood, Structural Plywood (for engineering), etc. |
Key Properties:
High Strength-to-Weight Ratio: Excellent structural strength.
Dimensional Stability: Cross-laminated structure minimizes expansion/shrinking.
Workability: Easy to cut, drill, screw, and finish with paints or veneers.
Versatility: Can be engineered for specific properties (fire resistance, chemical treatment).
Primary Applications:
Construction & Interior Fit-out: Wall/roof sheathing, subflooring, concrete formwork, interior ceilings, and partitions.
Furniture Manufacturing: Cabinets, tables, shelves, chairs, and wardrobes.
Industrial & Transportation: Vehicle/container flooring, ship interiors, packaging cases.
To select high-quality plywood, consider these factors:
Check Label & Certification: Look for stamps indicating Class/Type, Formaldehyde Emission Grade (E0/E1/CARB Phase 2), and manufacturer details.
Inspect Visual & Physical Quality:
Surfaces should be smooth, free of major defects, and securely bonded.
Check edges for gaps or delamination. High-quality plywood has tight, solid edges.
Tap the panel surface; a consistent, solid sound indicates good internal bonding.
Prioritize Key Parameters:
Moisture Resistance: Choose Class I (Exterior) or Class II (Water Resistant) for applications exposed to moisture or outdoors.
Formaldehyde Emission: For indoor use, ensure the product meets E1 (≤0.124 mg/m³) or stricter (E0, CARB) standards. Request test reports if necessary.
Plywood is a versatile and reliable engineered wood product. Understanding its grading system, properties, and proper selection criteria is essential for choosing the right panel for your specific project needs.
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