Deck cap and liner holes - suggestions for filling

[stevebrownell]

Following up on the same theme, does anyone have a method for backing up inaccessable deck and hull liner panels, prior to filling with epoxy/cloth, to allow for general repair and fairing? I removed cleats and routed-out the machine screws/nuts, but there are now a good number of holes left. Basically, I'm wondering if anyone has had to fill some holes in their deck cap where where fittings were removed, but left 1.2 - 3/4" holes. I can't get behind most of these little buggers in most locations, and I don't want to install additional access plates to fill them.

I was thinking about some kind of fiberglass drywall backing screen that could be inserted from the top side, and tensioned until the first coat of filler is in, but was interested if anyone had a better idea or similar experience/workaround?