Hi Gavin, Epoxy and Vinylester resins do not naturally bond together, you MUST sand/key to get a good bonding.
There are 2 different types of Vinylester resin available. 1. NON Waxed Vinylester dries with a sticky surface and further layers will bond together (with in 3 days). 2. Waxed Vinylester dries with a "dry" surface and requires sanding to enable further layers to bond. I prefer Waxed Vinylester and try to do all glass layers in one lay up. regards Barry Kruyssen Cairns, Australia RAA 19-3873 k...@bigpond.com http://www.users.bigpond.com/kr2/kr2.htm ----- Original Message ----- From: Glasseyegav To: KR builders and pilots Sent: Wednesday, January 19, 2005 9:52 AM Subject: KR> epoxy tanks with Vinyl top coat I've just finished closing up my left wing tank and glassed the entire bottom of the wing, but that Vinyl ester is a real pain to use !!!! I've heard that for sealing purposes only it's OK to use Epoxy resins to do the first layer of the fuel tank and the micro in the corners etc, and then to use vinyl for the top layer of cloth and the sealing coat. Are the two resins compatible?? will I have to sand the epoxy coat before I place the vinyl coat on top?? If this method works it'll make the whole job a lot easier and less sticky as the epoxy cures a lot slower in my climate. Thanks Gavin
