Polystyrene insulation is widely used for insulating in wall ,roof, floor, cold store,air duct etc. Polystyrene insulation is widely used for insulating in wall ,roof, floor, cold store,air duct etc.Product DescriptionSpecification:Thickness :20mm-100mm (flexible)Width:600mm/1,200mm(flexible)Length:1,200mm/2500mm/2360mm/3000mm(flexible)The density:35-70kg/m3 Polystyrene insulation