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Old 06-27-2019, 02:09 PM   #1
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1968 26' Overlander
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Sealing/caulking question

The previous owner called every joint/seam possible on my '68 Airstream. I'm redoing the obvious places and wonder if it is necessary to seal the places where the aluminum sheets overlap. I've attached a picture example of the area I'm asking about.

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Old 06-27-2019, 02:29 PM   #2
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Originally Posted by goswick View Post
The previous owner called every joint/seam possible on my '68 Airstream. I'm redoing the obvious places and wonder if it is necessary to seal the places where the aluminum sheets overlap. I've attached a picture example of the area I'm asking about.

Thanks
I don't think so. Far more likely you'd be getting leaks at bad rivets than a lap seam in the aluminum, especially a horizontal seam lapped the right direction.

I suggest you seal around all the "stuff" on your roof (vents, antennas, etc), around the windows and doors, and check every rivet with a suction cup. Dig old sealant out as much as possible before putting down new.
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Old 06-29-2019, 09:55 AM   #3
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I don't think so. Far more likely you'd be getting leaks at bad rivets than a lap seam in the aluminum, especially a horizontal seam lapped the right direction.

I suggest you seal around all the "stuff" on your roof (vents, antennas, etc), around the windows and doors, and check every rivet with a suction cup. Dig old sealant out as much as possible before putting down new.
Thanks for your reply...after I've gotten all the old calk pretty much scrapped out do you think I should wash the seams down with something like mineral spirits to get rid the remaining residue?
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Old 06-29-2019, 12:27 PM   #4
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Thanks for your reply...after I've gotten all the old calk pretty much scrapped out do you think I should wash the seams down with something like mineral spirits to get rid the remaining residue?
I've had good luck with carburator cleaner and a rag. Maybe a plastic scraper for stubborn bits.
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