... absorbent 2)fire retardant and self-extinguishing 3)Weatherproof 20mm pvc rigid foam sheet .Features: 1) Feather light, non-absorbent, fire ... ) Non-corrosive, non-toxic and chemical resistant4) Tough, rigid with high impact strength5) Non-warping and stain proof6) ... cabinets and panels, structures for corrosive environments, ducts.Specifications:1) Thickness: 1--20mm2) Standard sheet: 1,220 x 2,440mm ...