Join Date: Mar 2006
Location: New England
Thanked 11 Times in 11 Posts
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I see a couple problems with your fix. First, the UHMW may not have the tensile or compressive strength needed for such a use. Second, the 5200 may not bond to it very well, as UHMW plastics tend to be fairly slippery and most adhesives and sealants have issues bonding to them well .
If the UHMW piece isn't properly shaped, it can flex under the loads and may lead to damaging the bow, weakening the overall structure instead of strengthening it. It doesn't look like you bedded the UHMW piece in thickened epoxy, which would effectively spread the load evenly over the contact area, and that may lead to stress risers in the laminate. YMMV.
Of course, the loads on a boat the size of yours are probably not that much to worry about...but for anyone trying to do this on a larger boat, these concerns would be more significant.
A much better way to repair this would be to build up the area with fiberglass and spread the loading over a greater area of the hull than the small UHMW block is going to do. This would make the area both a lot stronger in case of a collision, as well as make the bow area sufficiently strong to support the loads of the boweye as well.
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.
—Cpt. Mal Reynolds, Serenity (edited)
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Last edited by sailingdog; 06-13-2010 at 11:55 AM.