Removed the white areas: chiseled out the big areas and drilled/ground out the smaller ones, then grinded and sanded it; ended up removing a lot of the Biax. Filled in the holes with 1708. The underlying Matt looked good; probably soaked up a lot more resin than the Biax.
Then more grinding/sanding. I hate wearing the full suit in this heat and humidity; lose 5 lbs every time.
First troweled on thickened epoxy with Cabosil and chopped glass fibers, onto the edges to make my filets, and filled in some small areas that weren't level; this is what looks white under the Biax and not air bubbles like last time!
This time I rolled out the epoxy on the Biax tape on a wetout board, rather than pouring it in and using a large squeegee; I fileted and triple taped all edges. It went a lot faster- only 5 hours and one gallon of epoxy.
Came out a lot nicer than last time. It's now about 3/16" thick at the flat sections, 1/4'"at the edges/overlaps and 3/8" at the transom corners.
Going to fill in the middle sections where there's no overlap and even up the surfaces.
Seeing that the mold separated from the hull a bit in the outside corners, I took a peek and it looks smooth- way less fairing!
The center of the corner panels are only about 1/8" thick, so I'll build that up with 1708 and probably another layer over everything.
The lower hull is definitely stiffer now than before; the original layup was fairly thin.
Since I removed the liner, I can see how stiffening the sides with Biax and some core will help.
Next to do the inside skin.
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