putting gluvit over 3m5200

billy sharp

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Feb 26, 2016
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have riveted 17 foot alum boat on a trailer and developed a couple leaks on the keel--half of the keel is sealed with 3m 5200 but not the other half leaks and the leaks are in that half. my question is would gluvit adhere to the 5200 because I really do not want to dig it out but want it to look uniform
 

jbcurt00

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Lets start w

What 17ft aluminum boat?

And got pix?

Exactly where along keel is it leaking?

Depending on who made her, many aluminum boats have a 1 piece bottom, so unless its at the bow rise, exceptionally unlikely to leak along the keel.
 

billy sharp

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Feb 26, 2016
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bass tracker 1991--coming out rear weep hole and about halfway back on the keel
 

billy sharp

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Feb 26, 2016
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more--can not determine exactly where leak is because the boat has the built in floor/carpet--just trying to seal up keel so it will not leak into boat and take plug out of weep hole in the winter
 

ondarvr

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Apr 6, 2005
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To the other question. No, epoxy will not bond to the 5200, at least not for long, it needs to be bare aluminum for the epoxy to stick.
 

TruckDrivingFool

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I'm with JB pic really is worth 1000 words,

Are you getting water in the boat that you know you're not bringing in (entering from the water) or just seeing it drip out? As JB described the way most tin boats are made the keel is like a piece of applied trim and have nothing to do with the hull seal other than where the mounting rivets go through the hull. The keel will and should drip some water when you pull the boat out as it needs to drain to avoid trapped water from freezing causing damage. Most keel leaks come from along the seam between the two bow tips and the brace plate.

If you do have a leak it may be time to pull the floor up and start looking.
 

jbcurt00

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Are you referring to the hull thru plug (or bilge plug) as the weep hole?

Or are you referring to small holes IN the keel that are factory to allow any water that gets into the keel to drain out to prevent the mentioned above freeze damage. There should be at least 2 weep holes along the keel, 1 about amidships and the other closer to the stern.

Pix would help w that ^^^

If you had a live well leak, as you posted in another topic, for any length of time, it really might be time to pull the deck (floor).

If you truly have a leak into the hull from outside, pulling the deck maybe the only way to accurately figure out where the problem is.
 
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