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Forum: Construction, Maintenance & Refit

17-07-2023, 14:59

Replies: 45

No gelcoat under waterline

Views: 5,685

Posted By capt jgw

Re: No gelcoat under waterline

About polyester over epoxy: yes it can be made to stick, but not as reliably as epoxy. Poly is a great media for laminating fiberglass but it's not a particularly good glue. Epoxy was invented as a...

Forum: Construction, Maintenance & Refit

17-07-2023, 08:27

Replies: 45

No gelcoat under waterline

Views: 5,685

Posted By capt jgw

Re: No gelcoat under waterline

Sure, using epoxy resin. Polyester resin does not reliably stick to epoxy. Gelcoat, being modified polyester, doesn't either. Once epoxy, always epoxy. Epoxy's better anyway, just more expensive.

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