Fontefire WF Clear is a one-component water-borne intumescent clear coating for wood.
This is a true intumescent coating, which keeps exposed wood cool and therefore hinders the progression of fire. It can prevent CLT structures, or feature wood-paneling, from charring and acting as fuel for the fire.
Validated with ISO, European fire tests and ASTM testing
ASTM E84 (Class A)
ASTM E2768-11 (2018) (30 minutes)
Calorimeter test – ISO 5660-1 (on 14mm spruce boards)
EN 13501-1:2007+A1:2009 – B-S1,d0 (Highest possible rating)
It has a very low level of organic emissions (VOC value 13g/liter).