SMC roving, the multiend roving for Sheet Molding Compound(SMC), is produced from a collection of continuous glass filaments gathered, without mechanical twisting into a single bundle. The filaments, which make up the bundles, are bonded together with a special size. Multiple bundles are then pulled together to form a strand which is wound into a tubeless package ready for use in customer application. SMC roving is compatible with unsaturated polyester resin and vinyl ester resin. It is mainly used for automotive exterior body panels with Class A surface, recreational vehicle housings, automotive and recreational semi-structural applications, water-tank panels and business equipment.