Vinyl Ester Or Epoxy

The curing process is radical initiated.

Vinyl ester or epoxy.

Polyester will not stick to epoxy but vinylester will. Regarding costs vinyl ester resin is more expensive than polyester resin but cheaper than epoxy resin. 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. The hardener catalyst for vinyl ester resin and polyester resins is mekp.

Epoxy s base is amine which is a different family altogether. Epoxies polyesters and vinylesters represent two resin families. These resins form durable laminates and coatings. The vinyl groups refer to these ester substituents which are prone to polymerize.

Polyester is small chain carbon whereas vinylester is long chain carbon which makes it more flexible. Resins are bisphenol a diglycidyl ether dgeba and epoxy phenol novolac epn. Cloth and polyester resin. Jimslade sep 7 2005 3 joined.

Vinyl ester resins are produced by the reaction esterification between an epoxy resin and an unsaturated monocarboxylic acid. Vinyl ester resins are typically formulated from styrene and a condensation product of methacrylic acid with an epoxy. Vinyl ester resins are a cross between polyester resins and epoxy resins. You can put epoxy over polyester but not the other way.

This condensation product acts as a crosslinking agent and to improve adhesion to glass fibers. Vinyl ester can be used for concrete and steel tank linings or as a concrete floor topping. Essentially they comprise a base of polyester resin strengthened with epoxy molecules in the backbone of the molecular chain. Epoxy adheres to wood much better than polyester does.

Vinyl is similar to polyester. These coatings typically exceed both polyester and epoxy in corrosion resistance temperature resistance and elongation toughness. Vinyl esters also use peroxides e g. Vinylester is essentially a styrene modified epoxy resin.

Epoxy vinyl ester resins ver are an important class of high performance thermoset molding resins. It adds excellent strength rigidity adhesion water and chemical resistance.