Epoxy Vs Vinyl Ester Resin

To cover wood a laminate using epoxy resin and 10 oz cloth will yield a much better job than 10 oz.

Epoxy vs vinyl ester resin.

Vinylester resins utilize a polyester resin type of cross linking molecules in the bonding process. Essentially they comprise a base of polyester resin strengthened with epoxy molecules in the backbone of the molecular chain. Vinylester is most often used with fiberglass but is also applied to carbon fiber as an outer cosmetic coating. 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. However they are primarily used as an aesthetic application to these products. Vinylester resins are stronger than polyester resins and cheaper than epoxy resins. The vinylester resins are only about 1 3rd as strong as the epoxy.

Vinylester is essentially a styrene modified epoxy resin. Regarding costs vinyl ester resin is more expensive than polyester resin but cheaper than epoxy resin. The two main types of epoxy resins are bisphenol a diglycidyl ether dgeba and epoxy phenol novolac epn. Cloth and polyester resin.

Vinylester resins utilize a polyester resin type of cross linking molecules in the bonding process. Polyester resins published on june 5 2018 june 5 2018 13 likes 0 comments. Ve resin is a tougher resin because of its longer molecular chains. Vinyl ester resin cures with a tack.

Structurally epoxy and vinylester are close in properties. Vinyl esters also use peroxides e g. It adds excellent strength rigidity adhesion water and chemical resistance. Epoxy adheres to wood much better than polyester does.

Vinyl ester resins are produced by the reaction esterification between an epoxy resin and an unsaturated monocarboxylic acid. Epoxy resin is an ideal resin for high performance and light weight parts. It is water resistant. Vinyl ester has lower resin viscosity approx 200 cps than polyester approx 500cps and epoxy approx 900cps.

Epoxy does not emit vocs. Epoxy however is much easier to work with and is much more forgiving. 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.

They are produced by the addition of α β unsaturated carboxylic acids to epoxy resins. These resins form durable laminates and coatings when fully cured cross linked.