Flex seal for aluminum boat

[RNinND]

I have an older aluminum boat that has multiple leaks. Has anyone tried coating the entire floor with Flex seal liquid rather than trying to address each individual leak? It has a floor in it so wouldn't be subject to wear. Not expecting perfection, just hoping to slow the seaping.

 

[SDMF]

Leaking rivets in the hull under the floor?

Just me, but, if not just re-riveting, I'd be more likely to try Devcon Underwater repair putty, Devcon Aluminum Putty, JB Weld original, JB Marine Weld, or JB Water Weld probably about in that order.

 

[westwolfone]

I have an older aluminum boat that has multiple leaks. Has anyone tried coating the entire floor with Flex seal liquid rather than trying to address each individual leak? It has a floor in it so wouldn't be subject to wear. Not expecting perfection, just hoping to slow the seaping.

I used something called Gluvit and it worked well.

If the leaks are bigger I would seal them with plumbers putty before coating.

 

[RNinND]

Leaking rivets in the hull under the floor?

Yes

 

[MULEDEER]

I did this. While I did the outside bottom rather than the inside. Overall not bad but be sure to prep very well the seal has a tendency to peel a little more than I thought it would. Granted in your situation I think it would work well

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Pm me i have a gallon and 1/2 I would give to you

 

[3Roosters]

You don't happen to have another handle by the name of riverfisher do you? j/k

 

[Captain Ahab]

Put a screen door in while you're at it;-).

 

[Kentucky Windage]

Sell the boat to Dave Genz. I heard he likes that kind of thing.

 

[nytebyte]

First thing to try is to just rebuck the rivets. if that doesnt work replace them or use the Gluvit that was recommended In most cases that I have been around just tightening them back up works.

 

[bilbo]

Flex seal only works if your boat is made of screen doors.

 

[Traxion]

Gluvit is the answer, along with tightening rivets. No matter what you do, it's gotta be prepped incredibly well.

 

[LBrandt]

Where you guys been. Chicken wire is the new boat craze. Must not be watching late night informational.

 

[Davey Crockett]

Can you tell where the leaks are ? I've put a little water on the inside and watched the outside for leaks , screwed my jack way down and checked the front first then cranked up and checked the back. I thought she was leaking like a gunnysack but turned out to be my feed hose for the livewell and the transducer mount.

 

[RNinND]

Can you tell where the leaks are ? I've put a little water on the inside and watched the outside for leaks , screwed my jack way down and checked the front first then cranked up and checked the back. I thought she was leaking like a gunnysack but turned out to be my feed hose for the livewell and the transducer mount.

That may be part of the problem as well, will check it out, thanks

 

[wslayer]

Couldn't even get my gutters to seal with that stuff.

 

[Vollmers]

Don't forget about "ookempucky"

Leaking rivets in the hull under the floor?

Just me, but, if not just re-riveting, I'd be more likely to try Devcon Underwater repair putty, Devcon Aluminum Putty, JB Weld original, JB Marine Weld, or JB Water Weld probably about in that order.

 

[CatDaddy]

https://www.youtube.com/watch?v=UA8uVpeMAHI
https://www.youtube.com/watch?v=bb_aCqOdyB0

 

[guywhofishes]

I will move heaven and earth to keep water from freezing in the hull of any boat. That freeze/thaw cycle is what effs up rivets/seams.

I have a late 70s Montgomery Ward aluminum I bought in college that is still water tight because it was always stored upside down.

 

[Lou63]

my older starcraft leaked around some loose rivets on the bottom in the back where I am unable to get to them from the inside.

I bought some of the Mac's tools generic flex seal spray cans on sale for a couple of bucks and used them. It had blue silicon sealant on it from a prior owner so I peeled that all off and used a wire brush on a drill to clean/rough up the outside and sprayed several coats on it.

I was worried my bilge pump had gone out last year when I turned it on and no water pumped out. It was dry and luckily I did not burn up my pump as I forgot to turn it off.


Even if I had to redo it every year or two its pretty easy to wire brush and spray compared to tearing the boat apart for a few loose rivets.

Also I had a pair of waders leaking in the crotch area and the seam sealer stuff didn't work so what the heck I sprayed them inside and out and the family jewels stayed dry. It dried a bit stiff but it worked.