"eddy long" wrote:

I'm doing a patch job to the underside of a fibreglass driftboat with
fibreglass matt and roving material (weave).

What is applied first after the area is wetted down woth expoxy resin -
the
matt or the weave?


Neither one. Those materials are for polyester not epoxy.

Get some 17 oz double bias (+/-45) knitted fabric for this job.

I'd probably lay about 3 layers.

Lew