Epoxy Vs Vinyl Ester Resin

Vinyl ester resins are produced by the reaction esterification between an epoxy resin and an unsaturated monocarboxylic acid.

Epoxy vs vinyl ester resin.

Vinylester resins utilize a polyester resin type of cross linking molecules in the bonding process. However they are primarily used as an aesthetic application to these products. In addition they do not adhere well to either the carbon fiber or kevlar materials. Choosing the appropriate resin epoxy vs.

Ve resin is a tougher resin because of its longer molecular chains. Epoxy however is much easier to work with and is much more forgiving. Epoxy resin is an ideal resin for high performance and light weight parts. In homebuilt airplanes the glasair and glastar kit planes made extensive use of vinylester fiberglass reinforced structures.

Vinyl ester has lower resin viscosity approx 200 cps than polyester approx 500cps and epoxy approx 900cps. Essentially they comprise a base of polyester resin strengthened with epoxy molecules in the backbone of the molecular chain. Epoxy does not emit vocs. Structurally epoxy and vinylester are close in properties.

Cloth and polyester resin. Vinyl ester resin cures with a tack. Vinylester resins are stronger than polyester resins and cheaper than epoxy resins. In conclusion both epoxy and vinylester are much preferred to polyester.

These resins form durable laminates and coatings when fully cured cross linked. To cover wood a laminate using epoxy resin and 10 oz cloth will yield a much better job than 10 oz. Vinylester is most often used with fiberglass but is also applied to carbon fiber as an outer cosmetic coating. It is water resistant.

Vinylester resins utilize a polyester resin type of cross linking molecules in the bonding process. The hardener catalyst for vinyl ester resin and polyester resins is mekp. Polyester resins published on june 5 2018 june 5 2018 13 likes 0 comments. Epoxy adheres to wood much better than polyester does.

Vinyl esters also use peroxides e g. They are produced by the addition of α β unsaturated carboxylic acids to epoxy resins. The vinylester resins are only about 1 3rd as strong as the epoxy. It can withstand repeated bending better than both polyester and epoxy resin.

Epoxy vinyl ester resins ver are an important class of high performance thermoset molding resins. The two main types of epoxy resins are bisphenol a diglycidyl ether dgeba and epoxy phenol novolac epn.