Epoxy is known for its higher bonding capabilities overall.
Difference between polyester and vinylester resin.
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.
Our 300 21 and 400 21 epoxy resins have a flexural strength of 17 500 psi.
Essentially they comprise a base of polyester resin strengthened with epoxy molecules in the backbone of the molecular chain.
Ortho polyester isothalic polyester and vinylester resins are compatible they all have styrene commonly known as the fiberglass smell and chemically bond to one another.
Key differences between epoxies and resins.
Epoxy is extremely strong and has great flexural strength.
Polyester resins are standard resin for composite construction.
Here s a quick breakdown on the differences between epoxy resin and polyester resin.
Per square inch while a polyester resin can hold less than 500 lbs.
Vinyl esters also use peroxides e g.
An epoxy s relative strength can hold up to 2 000 lbs.
See all epoxy resin products.
But there are several key differences between epoxies and resins.
Polyester vinyl ester and epoxy resins.