Formaldehyde resin, the
24.12.2020 17:46
Sometimes the window sills are made from chipboard.In general, chipboard is a material used for the device of non -removable formwork. Since the wood-based plate is a composite material, which includes wood sliver and phenol-formaldehyde resin, the safe use of chipboard can only be if there is no direct contact of the chipboard and a person, since the phenol-formaldehyde groups included in the composition of the material can begin with the course time to evaporate.