WISA-Birch Special is a multipurpose high quality product selected for various applications where excellent strength and light, smooth and even surface is essential. Due to its even surface WISA-Birch Special offers an excellent base for high quality painting and different overlaying methods. Because of the superb properties, strenght and surface, uncoated WISA birch plywood products are widely used in the demanding vehicle, shipbuilding, construction and furniture industries.
WISA-Birch Special
Properties
- Excellent strength/weight ratio
- Possibility to customise according to your needs
- Light, smooth and hard surface
- Wide size and thickness range available with strict tolerances
End-uses
- Vehicle floors
- Shipbuilding
- Construction
- Joinery and shop fitting
- Laminating industry
- Furniture
- High end packaging
Bonding
Weather resistant gluing according to EN 314-2/class 3 Exterior.
WISA-Birch Special fulfills the requirements of EN 13986 E1 low formaldehyde emission class. On request deliveries according to EPA/CARB.
Surface and edges
Face: Improved S (II)
Reverse side: BB
All available surface qualities comply with the EN 635 standard (Plywood - Classification by surface appearance) and is in part stricter.
Panel sizes
Standard sizes
1220/1250 x 2440/2500 mm
1500/1525 x 2500/3000/3050 mm
Pre-cut panels and cnc-machined components available on request.
Size tolerance (lenght/width) ± 1 mm/1000 mm
Squareness tolerance ± 1 mm/1000 mm
Thicknesses and weights
| Nominal thickness (mm) | Number of plies | Thickness | Weight (kg/m2) abt |
|---|---|---|---|
| min. - max. | |||
| 6.5 | 5 | 6.1 - 6.9 | 4.4 |
| 9 | 7 | 8.8 - 9.5 | 6.1 |
| 12 | 9 | 11.5 - 12.5 | 8.2 |
| 15 | 11 | 14.3 - 15.3 | 10.2 |
| 18 | 13 | 17.1 - 18.1 | 12.2 |
| 21 | 15 | 20.0 - 20.9 | 14.3 |
| 24 | 17 | 22.9 - 23.7 | 16.3 |
| 27 | 19 | 25.2 - 26.8 | 18.4 |
| 30 | 21 | 28.1 - 29.9 | 20.4 |
Size and thicknesses relating to moisture content 8 - 12 %.
Thicknesses and tolerances fulfill the requirements of EN 315 (Plywood - Toleranes for dimensions) and are in part stricter.
Designed strength properties and thicknesses available on request.