Vinyl ester

Vinyl ester resins are produced by the reaction (‘esterification’) between an epoxy resin and an unsaturated monocarboxylic acid. These resins are considered to be a hybrid of polyester and epoxy resins (in characteristics, properties, and price generally put in between the two). Vinyl ester resins are similar in their molecular structure to polyesters, but differ primarily in location of their reactive sites, these being positioned only at the ends of molecular chains. This makes them more able to absorb impact without damage. They are also less likely to show stress cracking. Vinyl esters exhibit better resistance to heat, water and many other chemicals than polyesters. These resins have excellent wetting of fibers and good adhesion to most substrates.

Vinyl esters are used to fabricate pipes, boat hull, tanks and vessels, oil platforms, automobile parts, etc.


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