Well I did some more yesterday and it cured faster. The temps in the garage were probably around 60-65, and Raka lists their times at around 77F, so it being a bit cooler wasn't helping. So I warmed everything up first and it set up faster. I left it in the cup a little longer too.

Mixing thoroughly is something I definitely do. Got my bow bent lamination glued and planed down.. now just to sand it perfectly.. things are coming together!

thanks

eric

: I've not seen a the fillers change the cure rate enough to notice, but I've
: not used Raka epoxy either. I've used perhaps 50 gallons of West's epoxy
: and never noticed this. The one thing we've both said though is to mix the
: epoxy first, then add any fillers. Incomplete mixing causes all sorts of
: problems.

: And if you try using any epoxy in cool/cold temperatures you can expect a
: very slow cure, sometimes extremely long. Don't know where you're using
: it, you didn't mention that.

: Bill H.