Distitron 412 V2 Orthophthalic resin Lonza Polyester >> Unsaturated Orthophthalic, pure resin. Unsaturated polyester resins used as matrix without reinforcement for buttons, marbles, coatings and as fibre reinforced matrix for marine, transport, building and electrical. Unsaturated Polyester Resins for Pipes with high mechanical properties and chemical resiatance, good wettability. Orthophthalic, pure resin for pipes with high mechanical properties and chemical resistance, good wettability. Used as matrix without reinforcement for coatings.