Re: Epoxy cure times?

SolarFry@aol.com
Wed, 21 Apr 1999 18:02:34 EDT


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West Wight Potter Website at URL
http://www.lesbois.com/wwpotter/
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In a message dated 4/21/99 1:58:12 PM Eastern Daylight Time, ej@blarg.net
writes:

<< Very possible. I'm hoping some more time with the heat will do the trick.
I'd hate to go buy yet another $35 piece of wood and take 90 minutes to get
to the marine wood place and back. Plus I'm liking the way the grain on the
upper piece flows into the grain on the lower piece and I was careful to get
a perfect joint between the two. Argh I hope this cures.

I should use that. I really really hate that most products say "add this can
of hardener to that can of resin" - which is fine when I think I can use up
a quart of $30 resin in one fell swoop, but for small batches its
hit-and-miss. Even marine-tex is a pain in that respect - gotta mix a hard
putty with a liquid hardener in a 4:1 ratio. I'd never had marine-tex fail
to cure though.

>>

I've suffered quietly through this problem before. I glassed dgrbrd on top
of galvanizing and it did not dry. I found reason was:

I did not put enough catalyst nor mix it enough.
It was dang cold at night and I did it in evening.
Water mist condensed on it overnight making it wet.

I put another light coat of resin, heavy on the catalyst ( 2.5 x required
catalyst), thoroughly mixed with a drill mixer on top of wet one. It took 2
weeks to completely dry out under coat with a heat lamp on it full time...
Also temp finally went to 90 for a couple of days before dropping to 55 again.

Good luck

SF