[NSRCA-discussion] Micoballons

[Dave Harmon]

The same thing happens with milled fiberglass...but I don't know why.
 
Regards

Dave Harmon
NSRCA 586
K6XYZ[at]valornet[dot]com
Broken Arrow, Ok. 
-----Original Message-----
From: nsrca-discussion-bounces at lists.nsrca.org
[mailto:nsrca-discussion-bounces at lists.nsrca.org] On Behalf Of Glenn
Hatfield
Sent: Monday, April 17, 2006 9:48 AM
To: nsrca-discussion at lists.nsrca.org
Subject: [NSRCA-discussion] Micoballons
 

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.
 
This stuff appears to be acting as a catalyst; which really surprised
me.  What is really going on here.
 
randy
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