Epoxy Vs Vinyl Ester Resin

Vinylester is essentially a styrene modified epoxy resin.

Epoxy vs vinyl ester resin.

In homebuilt airplanes the glasair and glastar kit planes made extensive use of vinylester fiberglass reinforced structures. In addition they do not adhere well to either the carbon fiber or kevlar materials. Vinylester is most often used with fiberglass but is also applied to carbon fiber as an outer cosmetic coating. Vinylester resins utilize a polyester resin type of cross linking molecules in the bonding process.

Epoxy resin is an ideal resin for high performance and light weight parts. Vinylester resins utilize a polyester resin type of cross linking molecules in the bonding process. It is water resistant. The hardener catalyst for vinyl ester resin and polyester resins is mekp.

Epoxy adheres to wood much better than polyester does. It can withstand repeated bending better than both polyester and epoxy resin. Vinyl ester resins are produced by the reaction esterification between an epoxy resin and an unsaturated monocarboxylic acid. Polyester resins published on june 5 2018 june 5 2018 13 likes 0 comments.

Regarding costs vinyl ester resin is more expensive than polyester resin but cheaper than epoxy resin. These resins form durable laminates and coatings when fully cured cross linked. Epoxy vinyl ester resins ver are an important class of high performance thermoset molding resins. In conclusion both epoxy and vinylester are much preferred to polyester.

To cover wood a laminate using epoxy resin and 10 oz cloth will yield a much better job than 10 oz. Choosing the appropriate resin epoxy vs. They are produced by the addition of α β unsaturated carboxylic acids to epoxy resins. Epoxy does not emit vocs.

Epoxy however is much easier to work with and is much more forgiving. Ve resin is a tougher resin because of its longer molecular chains. Structurally epoxy and vinylester are close in properties. Vinyl ester has lower resin viscosity approx 200 cps than polyester approx 500cps and epoxy approx 900cps.

Cloth and polyester resin. However they are primarily used as an aesthetic application to these products. Vinyl esters also use peroxides e g. The two main types of epoxy resins are bisphenol a diglycidyl ether dgeba and epoxy phenol novolac epn.

The vinylester resins are only about 1 3rd as strong as the epoxy. Vinylester resins are stronger than polyester resins and cheaper than epoxy resins.