Epoxy Vs Vinyl Ester Resin

Ve resin is a tougher resin because of its longer molecular chains.

Epoxy vs vinyl ester resin.

Vinyl ester resin cures with a tack. However they are primarily used as an aesthetic application to these products. 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.

In homebuilt airplanes the glasair and glastar kit planes made extensive use of vinylester fiberglass reinforced structures. Vinylester is essentially a styrene modified epoxy resin. Vinylester is most often used with fiberglass but is also applied to carbon fiber as an outer cosmetic coating. Choosing the appropriate resin epoxy vs.

It is water resistant. Epoxy however is much easier to work with and is much more forgiving. Vinylester resins utilize a polyester resin type of cross linking molecules in the bonding process. Regarding costs vinyl ester resin is more expensive than polyester resin but cheaper than epoxy resin.

Essentially they comprise a base of polyester resin strengthened with epoxy molecules in the backbone of the molecular chain. Structurally epoxy and vinylester are close in properties. Epoxy adheres to wood much better than polyester does. Epoxy does not emit vocs.

These resins form durable laminates and coatings when fully cured cross linked. It adds excellent strength rigidity adhesion water and chemical resistance. It can withstand repeated bending better than both polyester and epoxy resin. Vinyl ester has lower resin viscosity approx 200 cps than polyester approx 500cps and epoxy approx 900cps.

The two main types of epoxy resins are bisphenol a diglycidyl ether dgeba and epoxy phenol novolac epn. Polyester resins published on june 5 2018 june 5 2018 13 likes 0 comments. Vinyl esters also use peroxides e g. Vinylester resins are stronger than polyester resins and cheaper than epoxy resins.

They are produced by the addition of α β unsaturated carboxylic acids to epoxy resins. In addition they do not adhere well to either the carbon fiber or kevlar materials. Cloth and polyester resin. The vinylester resins are only about 1 3rd as strong as the epoxy.

Vinyl ester resins are produced by the reaction esterification between an epoxy resin and an unsaturated monocarboxylic acid. To cover wood a laminate using epoxy resin and 10 oz cloth will yield a much better job than 10 oz.