Description
Exterior Birch Plywood maintains its performance characteristics under conditions of high humidity and does not deform or soak. Being a water resistant plywood, it can be used in both interior and exterior finish.The hard surface of the exterior plywood offers durability and wear resistance. It is a water resistant plywood and hence is utilized for the internal constructions in the ship. The exterior plywood is also used as a basis for the flexible roofing, floors and ceilings leveling, etc.
Key benefits
- Higher water resistance
- Durable and wear resistant plywood
- Hard surface
- Resistance to temperature variation: through a range of -40°C to +50°C (-40°F to +122°F)
- Comes in a variety of thicknesses and sizes
Specification
| Profile | Detail |
|---|---|
| Standard sizes, length x width, mm (ft) | 1525×1525 (5×5) 1220x2440x1220 (4x8x4) 1250x2500x1250 (4x8x4) 1500/1525×2440/2500 (5×8) 2440/2500×1500/1525 (8×5) 1500/1525×3000/3050 (5×10) |
| Thickness, mm | 4-40 |
| Plywood grade | I (B, S), II (BB), III (CP), IV (C) |
| Surface type | Outer layers sanded (S2S), one side sanded (S1S), unsanded (NS) |
| Formaldehyde emission class | E1 |
| Waterproofness | Higher |
| Density, kg/m3 | 640-700 |
| Moisture content, % | 5-14 |
| Edge sealing | – |
| Plywood is produced under STO 00255177-001-2013 “General purpose plywood with birch face veneers.”* | |
Strength Specification
| Subject | Thickness,mm | Index | |
|---|---|---|---|
| Static bending strength, N/mm2, not less | along the outer layer grain | 9-40 | 60 |
| across the outer layer grain | 30 | ||
| Strength in tension along the grain, N/mm2, not less | 4-8 | 30 | |
| Modulus of elasticity in static bending, N/mm2, not less | along the grain | 9-40 | 6000 |
| across the grain | 3000 | ||