Be careful putting Devcon (and maybe others) in a microwave. I worked in aerospace for 20 years and we used Devcon to set tooling with. We would buy it in 5 gallon buckets, we used so much of the stuff. In order to "speed things up" a few guys started microwaving Devcon. It cuts the cure time from 24 hours to about an hour, but it makes it very brittle. Long story short, they got caught doing this and got fired. In doing testing in the Q.A. lab there at work, they found that microwaving Devcon that it lost a lot of strength as compared to using it in standard procedure.
