Vinyl Ester Resin Bond Strength

Excellent secondary chemical bond to polyester laminate when making repairs or when strength and stiffness are important.

Vinyl ester resin bond strength.

Bond strength and bond slip relationships. Vinyl ester resins are the binary resin systems containing a dimethacrylate monomer from which the cured material gains most of its properties and a reactive monomer such as styrene which acts as a reactive diluent and also takes part in the cross linking reaction. Vinyl ester has a shelf life of 3 months. An extremely high strength resin used for making strong stiff laminates.

Try to store the resin in a cool dry place or refrigerate do not freeze it to extend the life of the resin. New generation mas epoxies have curing systems which are phenol free representing a safe step forward for all resin users. Its use is limited to the construction of high performance power boats where vinylesters increased bond strength has helped eliminate bonding problems with core materials vinylester resin is also used as a great water barrier when mixed properly with glass. Vinyl ester resins are produced by the reaction esterification between an epoxy resin and an unsaturated monocarboxylic acid.

When using vinyl ester resin be sure to use it quickly after purchasing. Vinyl ester resins offer increased strength corrosion resistance and durability and are used in a wide variety of applications. Essentially they comprise a base of polyester resin strengthened with epoxy molecules in the backbone of the molecular chain. Resin has a short shelf life.

Epoxy resin should be used. To achieve the highest bond strength and water resistance use lbi s 901 vinylester resin. Vinylester is essentially a styrene modified epoxy resin. While vinyl ester resins are classified as polyester based formulations they are actually an intermediate between a polyester backbone and epoxy terminations on the ends of the molecules.

Vinyl esters also use peroxides e g. An ideal choice for repairs to high stress areas such as rudders skeg and fin. When higher strength bond and water resistance is required such as keel rudder repair or out board transom replacement use lbi s 302 isothalic polyester resin. Highly water and chemical resistant.

Call for specific applications.