: Am in the midst of 'glassing and had a batch of epoxy kick off
: earlier than expected. (Operator error? Three other batches,
: done right before and after, went fine.) The thickening epoxy
: didn't wet out the cloth in spots, but hardened over it before
: soaking into the fibers. Can I fix this by sanding down to
: expose the unfilled weave of the fiberglass and re-applying more
: viscous epoxy, or do I need to remove the fiberglass entirely
: and patch the areas involved?

Pretty much impossible to save the glass. Any epoxy that stuck to it will create hard spots that would have to be sanded off later and that would expose the glass in the finish. Just sand and or heat the bad areas and remove the bad glass and patch those places.

Bill H.