First off roving and mat are an extremely inefficient use of epoxy. For
maximum strenght the resin to glass ratio with epoxy should be 50/50 or
less resin. Because of the open weave roving sucks up way to much
resin. The other problem is that most mat is held together with a
styrene based binder. Polyester desolves the binder but epoxy does not
so the bond is to the binder not the glass.

Dan wrote:
Can you use chopped strand mat with epoxy?
I read one article that says no and then I read another article that
says it is ok.
I read where mat must always be used between two pieces of woven
roving when using epoxy, and then I read another article that says it
is ok to bond two pieces of woven together if you use a thickened
epoxy between them.
I am confused.
I'm not building a boat. I am repairing one, so I will not be using
polyester, just epoxy.
Thanks,
Dan

--
Glenn Ashmore

I'm building a 45' cutter in strip/composite. Watch my progress (or lack
there of) at: http://www.rutuonline.com
Shameless Commercial Division: http://www.spade-anchor-us.com