Gram weight : 3 OzSize:50 inch X 5 YardsFeatures: heat preservation, heat insulation, high temperature resistance, flame retardant, fire prevention, maintenance and reinforcementProducts:They are suited for application in boats, pools, crafts etc. and are compatible with polyester and Epoxy resin systems.It is a Plain Weave, E-glass Fiberglass Woven Roving Cloth for repair, maintenance & waterproofing applications.It is compatible with epoxy and polyester resin systems. Application: it is suitable for ship, electric, electronic, welding machine coil insulation tape, pipe tie on board, cable binding insulation, anti-corrosion, insulation, etc.Tip: We often fold pre cut materials in the production process, folding does not damage the glass fiber. Glass fiber is very flexible, very tough!Anyone with experience will agree that this allows us to maintain competitive market prices while maintaining high quality product quality.