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Jon and V Boat Conversions & Modifications
Another Jet Ski John Boat (New pics and video 01-18-2012)
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<blockquote data-quote="PSG-1" data-source="post: 227691" data-attributes="member: 6937"><p>Hey, MMF, I noticed your signature says "never used galvanized fittings on an aluminum boat" and "never use pressure treated lumber in an aluminum boat"</p><p></p><p>The advice about galvanized goes without saying (or at least it ought to), everyone should know about electrolysis and what happens when you use the wrong fasteners or fittings in water, especially salt water. If the fastener doesn't rust out completely, the resulting electrolysis will most assuredly damage the part it was bolted into.</p><p></p><p>But what about the pressure treated lumber? I've never heard of that one before. Is it because of the copper they use to PT the lumber, causing electrolysis, or is there another reason? Just curious. I'm usually not putting wood back in boats, but if the need ever arises, it's good to know about the right and wrong materials to use, and why. Thanks in advance.</p><p></p><p>And on a final note, let me add one to the list:</p><p></p><p>"NEVER, AND I DO MEAN NEVER, USE EXPANDING FOAM IN ALUMINUM BOATS."</p><p></p><p>Reason: unless it's a specialized closed-cell foam designed for marine use, expanding foam, like the type you buy in cans, will absorb moisture, and will cause crevice corrosion of aluminum.</p></blockquote><p></p>
[QUOTE="PSG-1, post: 227691, member: 6937"] Hey, MMF, I noticed your signature says "never used galvanized fittings on an aluminum boat" and "never use pressure treated lumber in an aluminum boat" The advice about galvanized goes without saying (or at least it ought to), everyone should know about electrolysis and what happens when you use the wrong fasteners or fittings in water, especially salt water. If the fastener doesn't rust out completely, the resulting electrolysis will most assuredly damage the part it was bolted into. But what about the pressure treated lumber? I've never heard of that one before. Is it because of the copper they use to PT the lumber, causing electrolysis, or is there another reason? Just curious. I'm usually not putting wood back in boats, but if the need ever arises, it's good to know about the right and wrong materials to use, and why. Thanks in advance. And on a final note, let me add one to the list: "NEVER, AND I DO MEAN NEVER, USE EXPANDING FOAM IN ALUMINUM BOATS." Reason: unless it's a specialized closed-cell foam designed for marine use, expanding foam, like the type you buy in cans, will absorb moisture, and will cause crevice corrosion of aluminum. [/QUOTE]
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Jon and V Boat Conversions & Modifications
Another Jet Ski John Boat (New pics and video 01-18-2012)
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