FIR-STOCK®

A three ply shuttering panel

with a plastic overlay

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CHARACTERISTICS

The FIR-STOCK® panel is a formwork produced in two traditional thicknesses: 21 mm and 27 mm, externally covered with a plastic overlay.
The polyolefin based plastic overlay allows a perfect, uniform, smooth, and impression free concrete finish, improving the result of the traditional three ply spruce panels:

  • Abrasion resistance is considerably higher
  • When nailed does not splinter
  • Less release oil is needed
  • Faster cleaning with high pressure water
  • Panel’s lifespan increases considerably
MECHANICAL RESISTANCE

The product’s impermeability keeps the original mechanical characteristics of the wood constant over time, preventing rapid deterioration.

Type F / 21 F / 27
Thickness mm 21 27
Weight kg/m2 11,5 15
Bending Resistance EN 789 MPa 40 35
Elastic-Modulus EN 789 MPa 10.000 8.500
HIGH ABRASION RESISTANCE

Thanks to the plastic overlay the panel displays a high abrasion resistance.

Taber test

Taber test

Scratch test

Scratch test

Technical Features of External Overlay

Surface Material Water Absorption < 3% ISO R62
Surface Hardness SHORE D>70,
GARDNER 5,
JANKA 5,345
Catas
Abrasion Resistance cs17 500 g 10.000 revolutions -0,25 g -0,14 mm CS17 Solvay Lab.
Taber Abrasion Resistance 17.000 revolutions UNI 9115 DIN 68861/2
Surface Material Burning Resistance Supera la FD STD 302 FD STD 302 Solvay Lab
Salt Fog Resistance The panel doesn’t show any alterations DIN 50021 ISO9227
NAILABILITY

The images demonstrate the nailability of the FIR-STOCK® panel and the absence of splintering, which is common in phenolic film faced plywood.

Nail

Nail

Surface

Surface

EXCELLENT RESISTANCE TO CHEMICAL AGENTS

Thanks to its polypropylene based surface, the panel resists cement alkalis and other corroding agents.

Chemical agents
SIZES AND STRUCTURE

The FIR-STOCK® panel can be supplied in standard dimensions, and other dimensions are available upon request.

Standard dimensions

Code Thickness (mm) Internal structure Dimension (mm)
F / 21 21 Three Ply Spruce 500/1000 X 2000/2500/4000
F / 27 27 Three Ply Spruce 500/1000/1500 X 1000/1500/2000/2500/3000/4000
RECYCLABLE

The FIR-STOCK® panel consists of birch plywood core overlaid with a polyolefin based plastic sheet. A study has shown that it is possible to re-use the FIR-STOCK® panel at the end of its lifecycle. The panel, ground down with other materials, has been used as material to manufacture some products as shown below, injected with an open mold using Plastech technology (read more).

The panel

1. The panel

Manufacturing

2. Manufacturing

Example of a derivative product

3a. Example of a derivative product

Example of a derivative product

3b. Example of a derivative product