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Boat House
Stern Skin Corrosion - How bad does it have to be - to be replaced?
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<blockquote data-quote="FuzzyGrub" data-source="post: 496483" data-attributes="member: 3438"><p>I'd talk to your welder on replacing the rear skin. I assume he would be using box tubing and bracing to make up the transom, and that is where the strength will come from. The skin will need to be welded to the framing in different spots. Don't put any coatings on it until your welder looks it over, and decide on a game plan. He will probably walk away from trying to remove epoxy to get a good weld.</p><p></p><p>I did the transom on my DMI 1648. I found "worm tracks" and had a few pin holes through the back skin and the piece that was on the inside face. I can't tell if it was better or worse than yours. This was caused by the mfg using pressure treated plywood. The pinholes were above the waterline, so cleaned up the aluminum and marine epoxied the pinholes. Then applied coats of Gluivit epoxy. I used a sheet of quality 3/4" exterior plywood to lay-up the 1.5" transom. That also got multiple coats of gluvit. It has been rock solid, but only about 5 years since the repairs.</p></blockquote><p></p>
[QUOTE="FuzzyGrub, post: 496483, member: 3438"] I'd talk to your welder on replacing the rear skin. I assume he would be using box tubing and bracing to make up the transom, and that is where the strength will come from. The skin will need to be welded to the framing in different spots. Don't put any coatings on it until your welder looks it over, and decide on a game plan. He will probably walk away from trying to remove epoxy to get a good weld. I did the transom on my DMI 1648. I found "worm tracks" and had a few pin holes through the back skin and the piece that was on the inside face. I can't tell if it was better or worse than yours. This was caused by the mfg using pressure treated plywood. The pinholes were above the waterline, so cleaned up the aluminum and marine epoxied the pinholes. Then applied coats of Gluivit epoxy. I used a sheet of quality 3/4" exterior plywood to lay-up the 1.5" transom. That also got multiple coats of gluvit. It has been rock solid, but only about 5 years since the repairs. [/QUOTE]
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Stern Skin Corrosion - How bad does it have to be - to be replaced?
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