Birch Form

WISA-Form Birch is a household name in the form working industry, a universal casting panel that can be used in numerous different applications from frame systems to special formwork projects. The full Birch base panel combined with phenolic coating is especially designed for the formwork end use and has an excellent strength to weight ratio and stable striking properties. Strong standard construction can be optimised further by using strength oriented construction when needed.

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Description

Description:
WISA-Form Birch is a household name in the form working industry, a universal casting panel that can be used in numerous different applications from frame systems to special formwork projects. The full Birch base panel combined with phenolic coating is especially designed for the formwork end use and has an excellent strength to weight ratio and stable striking properties. Strong standard construction can be optimised further by using strength oriented construction when needed.

Properties:
Excellent strength/weight ratio
Sound face for smooth surface
Good striking properties
Possibility to customise according to your needs

End-uses:
Horizontal formwork
Vertical formwork
Special formwork
Frame formwork systems
Bonding
Phenolic resin cross-bonded weather resistant glueing according to EN 314-2/class 3.

Surface and Edges:
Face and reverse: Dark brown phenolic film 120 g/m2 or 220 g/m2.
Edge sealing: Water resistant paint.

Panel Size:

Standard panel sizes:1200/1220/1250/1500/1525 x 2400/2440/2500/2700/3000/3050/3600/3660 mm
Cut sizes at customer’s request

Size tolerance (length/width) ±1mm per metre
Squareness tolerance ±1mm per metre length of diagonal

Constructions and thicknesses
Nominal thickness (mm) Number of plies WISA-Form standard sizes (mm)
min. max.
6.5 5 6.1 6.9
9 7 8.8 9.5
12 9 11.5 12.5
15 11 14.3 15.3
18 13 17.1 18.1
21 15 20.0 20.9
24 17 22.9 23.7
27 19 25.2 26.8
30 21 28.1 29.9
> 30 ± 3% ± 3%

Additional information

Size

Birch Form 1250×2500 21mm, Birch Form 1500×3000 12mm, Birch Form 1500×3000 15mm, Birch Form 1500×3000 18mm, Birch Form 1500×3000 9mm, Birch Form 2000×3000 15mm, Birch Form 2000×3000 18mm, Birch Form 2000×3000 21mm, Birch Form 220 1200 x 2220 18mm

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