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Jon and V Boat Conversions & Modifications
1973 PolarKraft 1440 MV - The Birth of Ictalurus
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<blockquote data-quote="longjohn119" data-source="post: 134416" data-attributes="member: 2826"><p>Water repellent and water proof are two entirely different things. Go with the spar urethane, personally I like the Varathane line. My brother makes custom doors for the insanely wealthy and he swears by Varathane but Minwax Helmsman is a good spar urethane too. I used it on all my decking and 1/4" sideboards too and not a bit of rot on any of it after 7 hard seasons of use. It also makes a better base for gluing carpeting, products like Thomson's waterseal or raw stain finishes like you have now are very poor in that department</p><p></p><p>I just traded in a '66 Polarkraft 1436 that I rebuilt the transom on in 2003 and it's was as solid as the day I finished it. Even the guy at the boat place was impressed (I had backed up nearly the entire transom with 3/16" plate I had obtained a few years earlier). I rebucked every rivet on the boat and only had one leak on me the entire time and that was due to a trailer issue tearing one loose. Tough little boats, I even jumped logs with it in the spring going up creeks and side channels when the Mississippi was high (Not recommended unless you really know what you are doing and have a strong arm to lift the motor fast as you slide over). I had an old 20 HP Merc 200 on the back and it would really scoot even with all the excess weight from all the wood I used. </p><p></p><p>Bottom line: If you are going to use wood for anything in a boat you really need to seal it up, especially if it's stored outside. That's doubly true for a major structural component like a transom.</p></blockquote><p></p>
[QUOTE="longjohn119, post: 134416, member: 2826"] Water repellent and water proof are two entirely different things. Go with the spar urethane, personally I like the Varathane line. My brother makes custom doors for the insanely wealthy and he swears by Varathane but Minwax Helmsman is a good spar urethane too. I used it on all my decking and 1/4" sideboards too and not a bit of rot on any of it after 7 hard seasons of use. It also makes a better base for gluing carpeting, products like Thomson's waterseal or raw stain finishes like you have now are very poor in that department I just traded in a '66 Polarkraft 1436 that I rebuilt the transom on in 2003 and it's was as solid as the day I finished it. Even the guy at the boat place was impressed (I had backed up nearly the entire transom with 3/16" plate I had obtained a few years earlier). I rebucked every rivet on the boat and only had one leak on me the entire time and that was due to a trailer issue tearing one loose. Tough little boats, I even jumped logs with it in the spring going up creeks and side channels when the Mississippi was high (Not recommended unless you really know what you are doing and have a strong arm to lift the motor fast as you slide over). I had an old 20 HP Merc 200 on the back and it would really scoot even with all the excess weight from all the wood I used. Bottom line: If you are going to use wood for anything in a boat you really need to seal it up, especially if it's stored outside. That's doubly true for a major structural component like a transom. [/QUOTE]
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Jon and V Boat Conversions & Modifications
1973 PolarKraft 1440 MV - The Birth of Ictalurus
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