Sunday, February 6, 2011

Fiberglassing the inside of the hull

In preparation for glassing the hull you put a strip of masking tape on the panel just above the highest seam. Then you lay out one edge of a 9 foot long section of fiberglass cloth along the masking tape, starting at the center of the boat and covering the bow. Masking tape is put on that edge connecting it to the boat to hold it in place while you cut the other side with a razor knife so that it is even with the tape on the other side.

The large triangle that you have left over from the 9 foot section should fit on the stern half of the boat with a 2 inch overlap. Apparently neither Kelly nor I have been accurate enough, so there is a gap between the two sections of cloth. This is okay, you just need to get some scrap cloth and fill the gap making sure that it overlaps the other cloth by two inches on either side.

Then tape and cut it just the same as the bow.

I then removed all the tape that was holding the fiberglass to the wood and then epoxied everything. Kelly removed the tape as she epoxied, which I think worked much better.

It was hard to make sure that the cloth was adhering in the seams. Lots of squeegeeing (is that a word??) and smoothing out with our hands did the job pretty well. I definitely have a few little bubbles here and there.
Then while the epoxy is still pretty fresh (a few hours depending on temperature) you go back and with a razor knife cut along the fiberglass at the bottom edge of the tape. Then just pull the tape off. It will definitely be harder if you wait too long.

Then I added a little fill coat where it seemed a bit rough, at the edge of the glass and where my feet would be. Then sanded out any roughness that was left in the hull and at the edge of the tape.

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