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Thru Bolt
Hi, I am adding new frames to my boat and plan to thru fasten. The boat is a 1942 Wheeler that had original oak frames (rotted out) and 1 5/8" cedar carvel planking. In the mid 1980's the hull...both above and below waterline was planked and fastened with 1/2" plywood and then fiberglassed. They did a good job as soundings show no release of glass. I have added many new 4 x 8 sawed frames and have attached from the inside while floating at the dock. At haul-out I plan to drill and add 1/2" bolts to fasten new frames to existing hull. My question---- Can I simply epoxy the heads in with epoxy, hardener and cabosil mixture (peanut butter mix) ? ---- or ----- Do I need to take the time to grind areas at each bolt so as to add new glass cloth? I have been thinking about small circular areas of 5" approx. (dish shaped) I have two concerns. The first is not very important...small leaks....the second concern is much larger...penetrating the fiberglass and causing spider line cracks or future failure points for the glass to let go. Thanks for help and of course if there are other options or ideas...please share. Marshall |
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