Vinyl Ester Resin Bond Strength

In terms of physical properties and cost vinylester resin is a compromise between low cost polyesters and epoxy resins.

Vinyl ester resin bond strength.

Essentially they comprise a base of polyester resin strengthened with epoxy molecules in the backbone of the molecular chain. To achieve the highest bond strength and water resistance use lbi s 901 vinylester resin. Call for specific applications. Vinyl ester resins offer increased strength corrosion resistance and durability and are used in a wide variety of applications.

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. Generally in all categories of work the builder repairer will realize the greatest degree of bond strength waterproofing and toughness with well formulated epoxies. An extremely high strength resin used for making strong stiff laminates. Highly water and chemical resistant.

When using vinyl ester resin be sure to use it quickly after purchasing. 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. 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. An ideal choice for repairs to high stress areas such as rudders skeg and fin.

Vinyl esters also use peroxides e g. Resin has a short shelf life. New generation mas epoxies have curing systems which are phenol free representing a safe step forward for all resin users. Vinyl ester resins are produced by the reaction esterification between an epoxy resin and an unsaturated monocarboxylic acid.

The styrene in the polyester or vinyl ester resin will melt it. Vinylester is essentially a styrene modified epoxy resin. Excellent secondary chemical bond to polyester laminate when making repairs or when strength and stiffness are important. Try to store the resin in a cool dry place or refrigerate do not freeze it to extend the life of the resin.

Epoxy resin should be used.