Here s a different way to look at epoxy resin vs.
Vinyl ester resin vs polyester.
Vinyl esters also use peroxides e g.
Essentially they comprise a base of polyester resin strengthened with epoxy molecules in the backbone of the molecular chain.
Vinylester resin as was explained to me by an r d chemist named mike daniels.
Water resistance isn t that big of a deal on stringers and while ve will bond better you will rarely have an issue with the bond unless you do a sloppy job.
Polyester resins also known as unsaturated polyester resins upr combined with fiberglass reinforcements have been the building blocks of the composites industry for decades these formulations provide low cost ease of handling quick cure and high strength to create a wide variety of.
Polyester and vinyl ester resins are the most commonly used matrix resins to create composite parts.
Vinyl ester resin is considered a hybrid of polyester and epoxy meaning its handling characteristics properties and price generally fall just between the other two.
Plus he has 25 years of making all kinds of cool stuff and is an expert wood crafter.
Polyester resin is brittle and prone to micro cracking.
Standard pool failures with polyester resin standard fiberglass pool manufacturers only use vinyl ester resin in one layer of the swimming pool as vinyl ester resin is generally double the cost of a polyester resin which is a cheaper resin used to provide bulk to the swimming pool.
Choosing the appropriate resin epoxy vs.
Mike works for a huge minnesota company and he does know his chemistry.
Vinylester is essentially a styrene modified epoxy resin.
The shelf life of polyester resin is about 6 months 1 year.
Vinyl ester resin vs.
You can vary the cure time of polyester resin by adding more or less of mekp catalyst.
It is important to note that of the three vinyl ester resin will provide the highest corrosion resistance temperature resistance and elongation toughness.
Polyester resin generally costs slightly less than epoxy resin.
Epoxy adheres to wood much better than polyester does.
Cloth and polyester resin.
It adds excellent strength rigidity adhesion water and chemical resistance.
To cover wood a laminate using epoxy resin and 10 oz cloth will yield a much better job than 10 oz.