Woodsafe Exterior WFX

The fire-protected wood product in this EPD consists of a heat modified pine/spruce impregnated with Woodsafe Exterior WFX, with a density of 525 kg/m3 and a moisture content of 8 %.  

Woodsafe Exterior WFX is developed for use in exterior and humid settings without the need for surface treatment. Common areas of use for Exterior WFX are facade cladding, balconies, canopies, and underground installation. The composition of the fire protection agent consists of a complex formula which is hardened to a very stable waterproof polymer that does not dissolve by precipitation. Fixation takes place in the woods cell structure in a specially developed drying process. In the process, the Exterior WFX is hardened to a polymerized state (waterproof fire protection treatment). When wood treated with Woodsafe Exterior WFX comes in contact with fire the combustion on the contact surface will be significantly reduced as the fire protection agents reacts with the heat generated. The chain reaction that starts in the fire protection agents forms water that lowers the temperature of the contact surface and reduces pyrolysis gases that arise when wood is heated. The result is that the wood charred (like wet wood) or burns slowly in a controlled manner. Woodsafe Exterior WFX is mainly applied to heat modified wood, the heat treatment is carried out by the Wood supplier before the wood products arrives at Woodsafe.