Brand: YILONG
Materials: veneer sheets of beech
Density: 0.9-1.1 T/m³
Thickness: 10-70mm
Size: 3000*1500mm, 2400*1200mm, 2000*1000mm, 2200*1200mm
Temperature Index: 145℃~150℃
Packaging: Pallet, Wooden Box
Description
Polywood Sheet is manufactured by bonding 2mm-thick beech veneers under high temperature (145–150℃) and high pressure (6–12 MPa) using durable, moisture-resistant adhesives. This process produces a strong, stable, and moisture-resistant sheet with excellent mechanical properties. Polywood Sheet is ideal for applications requiring high strength, dimensional stability, and resistance to humidity, making it suitable for furniture, cabinetry, construction, and electrical insulation components
Features
Manufactured from multiple beech veneers bonded under high temperature (145–150℃) and high pressure (6–12 MPa).
Uses durable, moisture-resistant adhesives for long-lasting performance.
Strong, stable, and dimensionally reliable.
Excellent resistance to humidity and moisture.
Superior mechanical properties suitable for demanding applications.
Applications
Furniture manufacturing and cabinetry.
Construction panels and interior decoration.
Electrical insulation components.
Structural supports in industrial equipment.
Any application requiring high strength and moisture resistance.
Technical Data Sheet
| Electrical Laminated Wood Boards Plywood Sheet | |||
| Physical Property | Unit | Value | |
| Density | T/m3 | 0.9-1.1 | |
| Rate of water content | % | ≤ 7 | |
| Thickness shrinkage ratio after drying | % | ≤ 1.5 | |
| Oil absorption rate | % | > 10 | |
| Ultimate thickness expansion rate after oil impregnation | % | ≤ 0.5 | |
| Compatibility with transformer oil | Good | ||
| Mechanical Property | Unit | Value | |
| Tensile strength | Parallel direction | Mpa | ≥50 |
| Compressive strength | Parallel direction | Mpa | ≥50 |
| Vertical direction | Mpa | ≥120 | |
| Bending strength | Parallel direction | Mpa | ≥100 |
| Vertical direction | Mpa | ≥100 | |
| Electrical Property | Unit | Value | |
| Volume resistivity | MΩ/m | ≥ 10a | |
| Electrical strength (50Hz) | 20ºC Transformer (Vertical) | Mv/m | ≥9 |
| 90ºC Transformer (Vertical) | Mv/m | ≥7 | |
| 20ºC Transformer (Parallel) | Kv/m | ≥45 | |
| 90ºC Transformer | Kv/m | ≥35 | |
| Dielectric loss factor (tg δ) (50Hz) | 20ºC Transformer oil | / | ≤0.2 |
| 90ºC Transformer oil | / | ≤0.13 | |
| Relative dielectric constant (∑ n) | 20ºC Transformer oil | / | ≤3 |
| 90ºC Transformer oil | / | ≤3.6 | |
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