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My husband has been building boats for years, and has a stash of West epoxy that I could use for our in-progress 14" Great Auk. He's had this epoxy for awhile (several years), and in that time was stored in an unheated barn for at least 3 winters, which means it was frozen/thawed a few times. Is this still good, or would it less of a headache to get some new stuff?
-Lianne
4 replies:
RE: Can epoxy go bad?
I used some epoxy on one project that had been sitting fully crystallized for just over 10 years. I put the bottles in from of a light for a few hours to heat it up. (This can be dangerous if the light melts the plastic bottle, don't ask me how I know...) The epoxy worked fine and after a couple of years of use on the boat, hasn't shown any ill effects.
RE: Can epoxy go bad?
The only total epoxy failures I have had was with resin or hardener components that got frozen. Some epoxy that froze in Maine a few years ago was almost the undoing of a dinghy project of mine.
Make sure you do a thorough test before committing the suspect epoxy to a boat!
More about epoxy in cold weather:
http://www.clcboats.com/shoptips/epoxy_and_fiberglass/epoxy_cold_weather.html
RE: Can epoxy go bad?
Good to know. I'll definitely test it first, but we're in NH, so I suspect we may have a problem...
Thanks!
RE: Can epoxy go bad?
» Submitted by Charlie - Wed, 1/14/09 » 4:25 PM
I had some that was old enough to crystalize. I set the stuff in a bucket of hot water which liquified it. Used it all up on project and had no trouble. I may have tested it on something small but I don't recall now.