Polyester resin

Polyester Resin - Unsaturated Polyester Resin. The term generally used for unsaturated (means containing chemical double bonds) resins formed by the reaction of dibasic organic acids and polyhydric alcohols, basic component of SMC/BMC.

Polyester resin is also known as a thermosetting plastic, which implies the plastic sets at high temperatures as opposed to thermoplastics which can be formed at high temperatures.