Hi Mike;

First of all, almost all the repair kits sold for your everyday polyester resin fiberglass boats is epoxy based these days. Apparently the epoxy sticks to PR better than PR does.

As to polyester resin over epoxy, yes indeed. We have a local surfboard mfr that has built them that way for years. Epoxy + glass for the strength, polyester resin for a hard, durable finish. I put polyester resin over my epoxy glassed hull as related on my kayak pages. It failed, but for an entirely different reason. The resin finish wrinkled overnight, probably because of an improper resin-wax-styrene mix - They offered to give me a new batch but I decided not to try it again. It took me so many hours to get that surface smooth again, I can attest to the hardness of PR as a finish. It ate sanding disks like nothing I've sanded before, perhaps 5 times harder than the epoxy I used. Some of it still remains (in unknown remaining thickness) beneath my varnish finish.

Best Regards, Spidey