Boat Building Forum

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Re: Epoxy: Mixing Different Brands?

Don't do it! Epoxy is not like polyester resins, which all use the same type of hardener. You should only use epoxy resin and hardener from the same source, as they are not the same chemically from brand to brand. While it's possible that it could work, it's more likely that you just end up wasting the materials. Even if it does appear to cure, you'll have no idea how strong it is.