WISA-Birch Special

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, strength and surface, uncoated WISA birch plywood products are widely used in the demanding vehicle, shipbuilding, construction and furniture industries. WISA-BirchLG Special is the same WISA-Birch Special plywood with surface veneer grain in long dimension.

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Description

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, strength and surface, uncoated WISA birch plywood products are widely used in the demanding vehicle, shipbuilding, construction and furniture industries. WISA-BirchLG Special is the same WISA-Birch Special plywood with surface veneer grain in long dimension.

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 fulfils 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

Standard sizes LG
2440/2500 x 1220/1250 mm

Pre-cut panels and cnc-machined components available on request.

Size tolerance (length/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 fulfil the requirements of EN 315 (Plywood – Tolerances for dimensions) and are in part stricter.

Designed strength properties and thicknesses available on request.

Additional information

Size

1220 x 2440 12mm, 1220 x 440 15mm, 1220 x 2440 18mm, 1220 x 2440 21mm, 1220 x 2440 30mm, 1220 x 2440 6.5mm, 1220 x 2440 9mm, 1250 x 2500 15mm, 1500 x 3000 12mm, 1500 x 3000 15mm, 1500 x 3000 18mm, 1500 x 3000 21mm, 1500 x 3000 30mm, 1500 x 3000 9mm, 1525 x 3050 35mm, 1525 x 3050 4mm, 2440 x 1220 12mm, 2440 x 1220 15mm, 2440 x 1220 18mm, 2440 x 1220 21mm, 2440 x 1220 30mm, 2440 x 1220 6.5mm, 2440 x 1220 9mm, 1525 x 3050 12mm

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