is cut lap the preffered way of glassing a board? i have been using free lap but find the lap line sometimes shows through the hot coat/ gloss coat. it is smooth but sometimes shows through.
Do 'em both ways…
Cut lap, miles of razor work + correct practice= clean.
With the free lap.
I’ll assume you grind down the rough.
And the last thing…
doing free or cut laps a sparing coat of styrene on said laps
prior to filler coat.
What Mattwho said… I would add that if you cannot cut your fiberglass clean (and I mean real clean), do cutlaps even for clear lam, more prep, but less potential work between bottom and deck… I always do cutlaps even for clear, good way to learn before working with colors.
Have fun!
Jean G.
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on the free lap, make sure you run enough resin or epoxy on to the deck of the board when tucking the rails. make sure everything is saturated good and then make it tight, there shouldn’t be much of a ridge if done right. If you do this there shouldn’t be any problem grinding the lap down flush. Take your time grinding the lap down, machine sand flat and finish with a soft rail comforming hand sand. You should have enough resin or epoxy on the deck to protect the grind down…but make sure you dont have blobs and lumps of epoxy or resin on the deck…if you do then you are just chasing more wobbles and problems.
Then when you put your two layers on the deck there should be no ridge line what so ever…the deck should look finished except for the hotcoat. Take your time and get it tight and bubble free.
Cut laps are only for color work when you need a crisp color line, actually a cut lap on a clear board will add to the problem. ie, you have to deal with a razor scar on the deck…that will show up when doing the deck lam, and then a pin line will be needed to hide most of the time.