Vinyl Ester Or Epoxy

The vinyl groups refer to these ester substituents which are prone to polymerize.

Vinyl ester or epoxy.

These coatings typically exceed both polyester and epoxy in corrosion resistance temperature resistance and elongation toughness. Regarding costs vinyl ester resin is more expensive than polyester resin but cheaper than epoxy resin. These resins form durable laminates and coatings. Vinyl esters also use peroxides e g.

It adds excellent strength rigidity adhesion water and chemical resistance. Vinylester is essentially a styrene modified epoxy resin. Polyester will not stick to epoxy but vinylester will. Cloth and polyester resin.

Vinyl is similar to polyester. Polyester is small chain carbon whereas vinylester is long chain carbon which makes it more flexible. They are produced by the addition of α β unsaturated carboxylic acids to epoxy resins. The curing process is radical initiated.

Epoxy s base is amine which is a different family altogether. Epoxy vinyl ester resins ver are an important class of high performance thermoset molding resins. The hardener catalyst for vinyl ester resin and polyester resins is mekp. To cover wood a laminate using epoxy resin and 10 oz cloth will yield a much better job than 10 oz.

Jimslade sep 7 2005 3 joined. 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. Epoxy adheres to wood much better than polyester does. Essentially they comprise a base of polyester resin strengthened with epoxy molecules in the backbone of the molecular chain.

Vinyl ester can be used for concrete and steel tank linings or as a concrete floor topping. 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. Resins are bisphenol a diglycidyl ether dgeba and epoxy phenol novolac epn.

Vinyl ester resins are a cross between polyester resins and epoxy resins. You can put epoxy over polyester but not the other way.