<DIV style="font-family:Arial,sans-serif;"><DIV><BR>I recently used micro-ballons in an epoxy for the first time. I was really surised how much the cure time changed with just a small ratio of micro-ballons. I was able to feel the expoxy warming up in the mixing cup. As an experiment I mix a small batch and tried to go for the max ratio; but ended up with a hot spot in the middle that set before I could finish the mixing.</DIV>
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<DIV>This stuff appears to be acting as a catalyst; which really surprised me. What is really going on here.</DIV>
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<DIV>randy<BR></DIV></DIV>