... Surface:PS ,White paper KT Foam boardIntroduction: Oursign Polystyrene foam board/KT board is an extruded polystyrene foam board bonded between two sheets ... of high-impact polystyrene or white card paper. It is also flatness, light-weight, rigid ... , Yellow, Blue, Green, White, Gray, Blackspecialcard board with adhesiveAspecial\ KT Foam board