Vinyl Ester Resin Vs Epoxy

Choosing the appropriate resin epoxy vs.

Vinyl ester resin vs epoxy.

In addition they do not adhere well to either the carbon fiber or kevlar materials. Vinyl ester falls between polyester and epoxy on price most physical properties and handling qualities. Epoxies belong to a family of resins which are epoxy functional which means they can be cured with amine curing agents at room temperatures to form excellent adhesives and composite resins. This is oversimplified but it does help convey the qualities of the resin.

Specifically proper cure of vinyl ester resins and a 15 year study of the effective use of permeation barriers in marine composites to prevent corrosion and blistering. Vinyl ester resins are often considered a cross between polyester resins and epoxy resins. Vinylester is essentially a styrene modified epoxy resin. Quality epoxy resins stick to other materials with 2 000 p s i.

Like polyester resins they require mekp as a catalyst to cure or harden. It adds excellent strength rigidity adhesion water and chemical resistance. The hardener catalyst for vinyl ester resin and polyester resins is mekp. Vinyl ester resins are produced by the reaction esterification between an epoxy resin and an unsaturated monocarboxylic acid.

For vinylester resins and even less for polyesters. Has some great papers on this which i am quoting from. Regarding costs vinyl ester resin is more expensive than polyester resin but cheaper than epoxy resin. Polyesters and vinylesters belong to another family of resins containing an unsaturated polyester or hybridized vinylester backbone which is catalyzed with.

Epoxy adheres to wood much better than polyester does. However they are primarily used as an aesthetic application to these products. The vinylester resins are only about 1 3rd as strong as the epoxy. 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. To cover wood a laminate using epoxy resin and 10 oz cloth will yield a much better job than 10 oz. Vinyl esters also use peroxides e g. Epoxy resin is known in the marine industry for its incredible toughness and bonding strength.