Nearing stage of end pours on Shearwater 16 Hybrid, and I've used and abused a bit too much epoxy, and looking to save, if possible. I've got some System 3 left from 5 or 6 years ago. It has been in an unheated/uncooled garage most of that time, both in Calif. and Georgia. I know freezing would not be good, but, there is a possibility that it has been frozen.

But... end pours? OK for this mostly-filler application? Oh, and, I'd like to use microballoons there, too, to save weight. And, btw, the Maas container does not say how much microballoon can be mixed with epoxy. So, how much is good? Thanks