Choosing the right gelcoat for use with PRO-SET® epoxy

In our experience, in-mould polyester gelcoats have yielded better results than epoxy gelcoats for exterior finish applications. But which type of gelcoat is best for each application?

We have had good results with various in-mould polyester gelcoats. Because of their superior resistance to ultraviolet degradation, polyester gelcoats are preferred over epoxy gelcoats for exterior finish applications. Check with your polyester gelcoat supplier for recommendations and test to determine product suitability and application technique.

Some fabricators have reported good success using a 2-part linear polyurethane paint sprayed directly onto the mould surface. This coating is allowed to cure and the epoxy laminate is applied directly to the paint. An epoxy gelcoat is sometimes preferred for plugs and moulds. 



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Contact our technical experts
We recommend that you test each brand of gelcoat or in-mould coating for suitability in a specific application. One of our technical experts will be able to guide you if you are unsure which gelcoat brand is best suited for your project. Contact them here.

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