On Wed, 12 Sep 2007 20:57:28 GMT, "David Murray"
wrote stuff
and I replied:

!st question: what sort of reapairs; fillin or gap bridging? Are you
glassing or only patching?

Polyester builds well, when mated with the glass mat (CSM...chopped
strand mat) that has the right impregnation (binder) to accept it. It
works into woven glass quite well. It does not __stick_ worth crap
(not even to a blanket)....or to old poly/glass

Be aware that epoxy is not happy with the glass mat that is used with
Poly; it does not not react with the binder that is for ployester. I
am a bit out of date, but check even for woven glass. Some were sized
with biner IIRC

Hi there.
I have a small (14 foot) grp boat which needs some repair work done to the
hull and cuddy.
My question is which type of resin should I use for the repair - epoxy or
polyester resin?
I have a feeling epoxy is best for marine applications but just want to
check.
Please advise
Thanks
Davy M.


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