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Jon and V Boat Conversions & Modifications
21' party deck to light weight fishing boat
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<blockquote data-quote="thill" data-source="post: 494587" data-attributes="member: 4972"><p>Going back to this Party Deck boat...</p><p>What was the mistake made with the boat before? I see 2 primary things: </p><p></p><p>1. They did not seal their plywood and it sopped up a ton of water.</p><p>2. They either did not seal around the deck or the bilge held a lot of water and it saturated the foam. </p><p></p><p>For #1, you simply need well-sealed decking. With support 16" O.C. I would use 4-ply or better 1/2" plywood and seal it with epoxy or resin. If I really liked the boat, I would also lay 3/4 oz glass matt on the top and bottom of the plywood. That has the benefit of making the floor MUCH stronger and even more impervious to rot. Either way, spend time sealing EVERY fastener carefully. Pre-drill, saturate with resin, drive the fastener. </p><p></p><p>For #2, Find where the water came from. Fix any leaks, bad pump hoses or whatever. Then, after you lay the new floor, seal 100 percent of the floor perimeter to the hull of the boat. Make sure the floor does not touch the hull at any point. and then use a sealant. You could use a number of products, but I would avoid silicone.</p><p></p><p>The idea is if you never get water in your bilge, your foam will never get saturated.</p><p></p><p>Thinking it out isn't hard. A few details makes the difference between doing a fair job and an excellent job.</p></blockquote><p></p>
[QUOTE="thill, post: 494587, member: 4972"] Going back to this Party Deck boat... What was the mistake made with the boat before? I see 2 primary things: 1. They did not seal their plywood and it sopped up a ton of water. 2. They either did not seal around the deck or the bilge held a lot of water and it saturated the foam. For #1, you simply need well-sealed decking. With support 16" O.C. I would use 4-ply or better 1/2" plywood and seal it with epoxy or resin. If I really liked the boat, I would also lay 3/4 oz glass matt on the top and bottom of the plywood. That has the benefit of making the floor MUCH stronger and even more impervious to rot. Either way, spend time sealing EVERY fastener carefully. Pre-drill, saturate with resin, drive the fastener. For #2, Find where the water came from. Fix any leaks, bad pump hoses or whatever. Then, after you lay the new floor, seal 100 percent of the floor perimeter to the hull of the boat. Make sure the floor does not touch the hull at any point. and then use a sealant. You could use a number of products, but I would avoid silicone. The idea is if you never get water in your bilge, your foam will never get saturated. Thinking it out isn't hard. A few details makes the difference between doing a fair job and an excellent job. [/QUOTE]
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Jon and V Boat Conversions & Modifications
21' party deck to light weight fishing boat
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