SYNTEVEN 463 is a non-pre-accelerated unsaturated polyester resin dissolved in styrene, of medium reactivity with strong flexibilising properties and is used to give greater elasticity and adhesion both on galvanized steel, plastic, and for non-“direct polished” polyester systems. Waxed, fillers formulated for roller, knife or spray applications in primers for U.V. photo-curing systems, transparent also filled containing styrene.