Difference Between Polyester And Vinylester Resin

Differences between resins there are three main types of resins used for composite materials.

Difference between polyester and vinylester resin.

Our 300 21 and 400 21 epoxy resins have a flexural strength of 17 500 psi. Polyester vinyl ester and epoxy resins. See all epoxy resin products. Vinyl ester resins are produced by the reaction esterification between an epoxy resin and an unsaturated monocarboxylic acid.

Ortho polyester isothalic polyester and vinylester resins are compatible they all have styrene commonly known as the fiberglass smell and chemically bond to one another. Essentially they comprise a base of polyester resin strengthened with epoxy molecules in the backbone of the molecular chain. An epoxy s relative strength can hold up to 2 000 lbs. Because of their chemical structure vinyl esters and epoxies offer higher mechanical strength adhesion and heat resistance over polyester resins.

Epoxy is extremely strong and has great flexural strength. Polyester resins are standard resin for composite construction. Key differences between epoxies and resins. Here s a quick breakdown on the differences between epoxy resin and polyester resin.

When higher strength bond and water resistance is required such as keel rudder repair or out board transom replacement use lbi s 302 isothalic polyester resin. Vinyl esters also use peroxides e g.