I've been rebuilding an old 60" sloper and
have run into a problem in glassing the fuse.
I know a vast number of the list members are
into composites and glassing so here is my
question:
I glassed the fuselage with a layer of 3/4 oz
glass according to the methods published
recently in MAN as well as other articles by
Jim Ryan and others.
No problem so far. Everything cured nicely, I
gave it a light sanding, wiped it down with
methanol and applied a second coat of resin
thinned slightly with methanol (I'm using
Jeffco 1314/3102 as it is on the shelf
locally). Everything flowed out nicely so I
hung it up to cure. Next morning, I checked
it and found that it had beaded-up during
curing. Not droopily beads, but long soft
ridges. Lots of sanding required....UGH!
I ran a few experiments on small test
sections with thinned and unthinned resin,
with similar results. I understand that some
finishing resins contain a bit of wax which
could cause such behavior, but this one does
not (according to the supplier).
Before I go purchase another kind of resin
(seems the most obvious thing to try next)
are there any ideas from the vast knowledge
pool out
there?
TIA
Steve Kerrin
Escondido, CA
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