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Tue, April 16 2024, 08:54 [ Login ] [ Contact Forum Admin ] [ Main index ] [ Post a new message ] [ Search | Check update time | Archives: 1, 2, 3, [4], 5, 6, 7, 8, 9 ]

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Date Posted: - Thursday - 09/ 3/09 - 1:14am
Author: Randall, M31, Murre
Subject: backing material
In reply to: Tom Roberts 's message, "Clipper Bow" on - Wednesday - 09/ 2/09 - 9:20pm

I have an M31 w/out the clipper bow, but have rebacked a fair number of through hull fasteners, including all through hulls and the bow sprit tang.

I used plywood as backing material thoroughly soaked in penetrating epoxy and holes generously gooped with 5200. Six years later all is well.

I like plywood for this application (all the original backing was plywood too) because it won't split if put under the uneven pressure of a non flat surface as a solid piece might. It can compress, however, so large washers are a must.

Not sure that was the question you were asking, but hope that helps.

RR

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[> [> [> [> [> [> [> [> Backing Material -- Tom Roberts (S/V Island Lady), - Saturday - 09/ 5/09 - 8:14pm

Thanks Randall. . .not sure what type of material was used originally, but I do have plenty of plywood scraps left after cockpit rebuild, cabin house repair, deck work, and making the new clipper bow! The backing appears to be about 1.5 inches thick, at one point, and tapers down to a small sliver at each end where the plaque contacts the hull and the clipper bow. I thought about mounting the plaque, and then filling the open void with some type of mixture that would harden and provide support(sturdier than foam, but lighter than epoxy). When will I learn than there is no such thing as an easy fix when it comes to boat work!

Tom


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