Top Quality Liquid Unsaturated Polyester Resin for Fiberglass
"Polyester" is a class of polymer compounds containing ester bonds that are distinguished from resins such as phenolic and epoxy resins. This polymer compound is generated by the polycondensation reaction between dibasic acid and dibasic alcohol, and when this polymer compound contains an unsaturated double bond, it is called unsaturated polyester, and this unsaturated polyester is dissolved in a monomer that has the ability to be polymerised (generally styrene).
This unsaturated polyester is dissolved in a monomer (usually styrene) that has the ability to polymerise, and when it becomes a viscous liquid, it is called an unsaturated polyester resin (Unsaturated Polyester Resin or UPR for short).
Unsaturated polyester resin can therefore be defined as a viscous liquid formed by the polycondensation of a dibasic acid with a dibasic alcohol containing an unsaturated dibasic acid or dibasic alcohol in a linear polymer compound dissolved in a monomer (usually styrene). Unsaturated polyester resins, which make up 75 per cent of the resins we use every day.