... 4% on thickness WHY CAN IT BE BETTER? 1) Light weight, waterproof, fire retardant and self-extinguishing2) Sound insulation, ... printing, silk screen printing, computer lettering, sign board, light box,etc. 2)Construction: office and bathroom cabinets, inner and ... printing, silk screen printing, computer lettering, sign board, light box,etc. 2)Construction: office and bathroom cabinets, inner and ...