... and self-extinguishing 3)Weatherproof 20mm pvc foam board/sheet .Features: 1) Feather light, non-absorbent, fire retardant ... warping and stain proof6) Easy to clean and maintainApplications:1) Advertising: signs, displays, pop-up displays, exhibition ... environments, ducts.Specifications:1) Thickness: 1--20mm2) Standard sheet: 1,220 x 2,440mm,1,560 x 3,050mm ... : 0086-531-83260439 20mm pvc foam board/sheet