Originally Posted by jonb
I have a need to fill in a 3/4" hole remaining after removal of a thru-hull.
Would the technique for a filling a smaller hole still require a 1/12 taper on the outside of the hull?
I was planning to use multiple layers of glass cloth on the inside of the hull where there is a recess for the thru hull (where there is no core). I was thinking of using milled glass fibers to fill the hole itself and have a very small taper of maybe only 1" around hole again filled with the milled fibers.
Is this sufficient or should I be using glass cloth on the outside of the hull with a larger tapered area.
Provided you grind the surface to get the glass on the interior to bond properly, I don't see a problem with doing it this way. You're basically patching it from both sides, but I'd recommend putting a few layers of glass on the outside just to be safe.
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