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Old 11-29-2017, 06:36 PM   #12
DHeckrotte
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City: Philadelphia, PA
Vessel Name: Revel
Vessel Model: 1984 Fu Hwa 39
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Are these through holes, that is, open to whatever's below? Are we talking about repairs to a cored structure where the core is exposed within the bore of the hole?

If it's a through hole then the epoxy dripping onto whatever is below might be undesirable. A dowel would stop the drip; coat the hole, coat the dowel and knock it down below the upper thickness of 'glass. Fill the remaining hole with thickened epoxy either shy or flush having considered how hard you want to work to patch the gelcoat.

If it's just a hole into the core, then the dowel could be considered solely to save you some epoxy; proceed as above.

If it's just a hole into the core, then fill it with thickened epoxy and get on with the surface repair. Poking the epoxy with a bit of wire, toothpick or similar is necessary to pop the inevitable air bubbles.

As has been mentioned before elsewhere, be sure you've got the bore clean and the shattered gelcoat removed. Drill it out a smidge and use a countersink.
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