... : halftone printing, computer lettering, ad scutcheon, exhibition board, remark board; industrial application: antisepsis project, thermal moulding parts, ... special cold-keep project and environmental protection. Plastic board production lineOther purposed of PVC expansion boards: template ... result, elongation at break, % 15-20, Shore Hardness, D type, 45-50 water absorption, % ≥1.5, Vicat softening ...