On Sun, Jul 5, 2015 at 2:58 PM, Josh Muckley via CnC-List < cnc-list@cnc-list.com> wrote:
> I can't understand why anyone would use polyester OR vinylester resin for > a repair. I do it quite often. Vinylester resin works as well as epoxy and avoids the compatibility issues. It's also cheaper. But like you said, if you're going to grind it all out anyway, epoxy works fine. I think the proportioned pumps make epoxy easier to use. . 5 strokes of epoxy resin, 5 strokes of epoxy hardener. Almost foolproof. Vinylester resin mixing takes more thought and technique. I learned long ago, when mixing MEKP into vinylester resin or gelcoat, go METRIC or use a scale. Mixing 100 grams resin? Add 1.5-2 ml MEKP. Done. The math is so much easier than 19 drops per ounce or whatever using English measures. Dennis C. Touche' 35-1 #83 Mandeville, LA
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