Product Parameters Thickness: 2.5mm. (Customized) Surface Treatment: Anti- UV Grey gelcoat, Fiberglass Content: 70%. Fiberglass Type: Fiberglass felt. Resin Type: Unsaturated polyester. Applications: Wall panels for RVs and trucks. Category: GRP Sheets Get a Quote Related products Quick View Quick View GRP Sheets2.0mm White Gelcoat Non-slip GRP Sheets Quick View Quick View GRP SheetsBlack UV-resistant Flat GRP Sheets Quick View Quick View GRP Sheets3.6mm Flat GRP Sheets for RV Siding Panels Quick View Quick View GRP Sheets1.5mm White High Gloss GRP Sheets for RV Siding