Vinyl Ester Or Epoxy

The curing process is radical initiated.

Vinyl ester or epoxy.

Vinyl is similar to polyester. Vinyl ester resin or often just vinyl ester is a resin produced by the esterification of an epoxy resin with acrylic or methacrylic acids. Regarding costs vinyl ester resin is more expensive than polyester resin but cheaper than epoxy resin. These resins form durable laminates and coatings.

Polyester will not stick to epoxy but vinylester will. These coatings typically exceed both polyester and epoxy in corrosion resistance temperature resistance and elongation toughness. It adds excellent strength rigidity adhesion water and chemical resistance. Vinyl esters also use peroxides e g.

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 condensation product acts as a crosslinking agent and to improve adhesion to glass fibers. Cloth and polyester resin. Jimslade sep 7 2005 3 joined.

The vinyl groups refer to these ester substituents which are prone to polymerize. Vinyl ester can be used for concrete and steel tank linings or as a concrete floor topping. Vinyl ester resins are a cross between polyester resins and epoxy resins. Vinylester is essentially a styrene modified epoxy resin.

Epoxy s base is amine which is a different family altogether. Polyester is small chain carbon whereas vinylester is long chain carbon which makes it more flexible. Vinyl ester resins are produced by the reaction esterification between an epoxy resin and an unsaturated monocarboxylic acid. Essentially they comprise a base of polyester resin strengthened with epoxy molecules in the backbone of the molecular chain.

Epoxies polyesters and vinylesters represent two resin families. Vinyl ester resins are typically formulated from styrene and a condensation product of methacrylic acid with an epoxy. 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.

They are produced by the addition of α β unsaturated carboxylic acids to epoxy resins. Epoxy adheres to wood much better than polyester does.