... Thickness:3,5,10,12mm Surface:PS ,White Card Paper Color paper ,adhesive release paper KT Foam BoardIntroduction: Oursign Polystyrene foam board/KT board ... between two sheets of high-impact polystyrene or white card paper. It is also flatness, light-weight, rigid and durable, ... insulation and so on. The boards have PS surface, paper surface, adhesive release paper. They can be cut with a knife, and can ...