Vinyl Ester Or Epoxy

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

Vinyl ester or epoxy.

Vinyl ester resins are produced by the reaction esterification between an epoxy resin and an unsaturated monocarboxylic acid. They are produced by the addition of α β unsaturated carboxylic acids to epoxy resins. Polyester is small chain carbon whereas vinylester is long chain carbon which makes it more flexible. This condensation product acts as a crosslinking agent and to improve adhesion to glass fibers.

Epoxies polyesters and vinylesters represent two resin families. You can put epoxy over polyester but not the other way. Vinyl esters also use peroxides e g. These coatings typically exceed both polyester and epoxy in corrosion resistance temperature resistance and elongation toughness.

Vinylester is essentially a styrene modified epoxy resin. It adds excellent strength rigidity adhesion water and chemical resistance. Regarding costs vinyl ester resin is more expensive than polyester resin but cheaper than epoxy resin. Essentially they comprise a base of polyester resin strengthened with epoxy molecules in the backbone of the molecular chain.

The curing process is radical initiated. Polyester will not stick to epoxy but vinylester will. Vinyl is similar to polyester. Jimslade sep 7 2005 3 joined.

The hardener catalyst for vinyl ester resin and polyester resins is mekp. Vinyl ester resin or often just vinyl ester is a resin produced by the esterification of an epoxy resin with acrylic or methacrylic acids. These resins form durable laminates and coatings. To cover wood a laminate using epoxy resin and 10 oz cloth will yield a much better job than 10 oz.

Vinyl ester resins are a cross between polyester resins and epoxy resins. Vinyl ester resins are typically formulated from styrene and a condensation product of methacrylic acid with an epoxy. Vinyl ester can be used for concrete and steel tank linings or as a concrete floor topping. 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 vinyl ester resins ver are an important class of high performance thermoset molding resins. Cloth and polyester resin.