We just launched a 14 Auk and tried both methods. The pre-sealing allowed us to slick out any snags by lightly sanding the seal coat prior to placing the glass. The second advantage was handling less epoxy in one nights activity.

We got in a time crunch and elected to skip the seal coat on the interior of the hull and wished, during the wetting of the glass, that we had. Just seemed to make a stressfull task less of a hand full.

: Need help on Fiber glassing, Should I put a seal coat on first before
: glassing or not I heard you could and could not Help Thanks ;) Elk