"Meindert Sprang" wrote in message ...
"brad" wrote in message
om...
Will epoxy cure at temperatures as low as 40 F.

Yes. The general rule is that the curing time doubles for each 18F/10C. a
bigger problem is moisture. The hardener likes to react with water instead
of epoxy.

When my friend and I built a glued lapstrake dinghy in the winter, it was
often freezing. We hung 75 watt lightbulbs between the moulds and covered
the hull with a thin foam/aluminum blanket when curing overnight. Most of
the time the epoxy was cured in the morning.

Meindert

The way my distributor explained it to me. Most of the major lines
will cure at that temp, slowly, and not completely. They will in most
cases be able to be cured to a point where they can be worked and are
fairly sound and for all practical purposes, we can call it cured.
There are also cold cure hardners that will come "cure" faster at
temp. To reach "full" cure, most still need some time in the high 70's
or low 80's farenheit for a day or so.
Scotty