... retardant and self-extinguishing 3)Weatherproof 20mm pvc rigid foam sheet .Features: 1) Feather light, non-absorbent, fire retardant ... outdoor decoration, air conditioning ducts, windows and false ceilings3) Industrial use: wall claddings, control cabinets and panels, structures for ... corrosive environments, ducts.Specifications:1) Thickness: 1--20mm2) Standard sheet: 1,220 x 2,440mm,1,560 x 3,050mm ...