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Old 03-28-2021, 06:10 PM   #1
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1975 Argosy 26
Hanover , Pennsylvania
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Dirt Sticking to Trempro 635

Hi,

I need a suggestion for an exterior sealant for seams, rivets, windows, that dirt and road grime will not stick to. It will not be painted over.

Iíve used trempro 635 for the entire project so far. Dirt and grime stick to this stuff like crazy and it doesnít wash off. Thankfully we re-sealed everything new and painted it right away (photo attached).

Please suggest a finish top sealant for windows and seams that is washable, that cures without tack, that comes in white or gray or clear.

Thanks in advance!
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Old 03-28-2021, 06:30 PM   #2
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Iíve never thought about washable before. I have used MasterSeal NP1 for decades on houses and our Airstreams. It is a polyurethane and considered washable. You may want to get a tube and run a bead of caulk on a board and let it cure. Rub dirt on it and wash it to see how it holds up. But it has to cure. To prevent an open tube from drying out, just tape up the nozzle air tight. Itíll be interesting to hear otherís suggestions. Take care and good luck.
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Old 03-28-2021, 07:04 PM   #3
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Any suggestion on where to buy a tube? Colors?
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Old 03-28-2021, 07:24 PM   #4
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Sikaflex 221
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Old 03-28-2021, 07:30 PM   #5
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Quote:
Originally Posted by Pretzeltown View Post
Any suggestion on where to buy a tube? Colors?
Our local Ace Hardware has it. Check online to see if your locals handle it. Since itís a polyurethane, others may work as well. Itís not expensive, so give it a whirl.
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Old 03-29-2021, 02:04 PM   #6
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2006 34' Classic S/O
Fort Worth , Texas
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Airstream and I use Adseal. it its siliconize sealant, but ok to use on aluminum. It is easy to apply and remove. Airstream says to reseal your trailer every 5 years.
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Old 03-29-2021, 03:03 PM   #7
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1974 Argosy 26
Langley , British Columbia
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Gorgeous Paint job ! I am slowly prepping for paint this spring ... Also keeping the aluminum unpainted on the frames , love the contrast . I donít know about sealant ... I just used trempro 635 on a bunch of spots as I didnít realize it would get dirty ! Would love any tips you have on painting !
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Old 03-29-2021, 03:32 PM   #8
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Zanadude Nebula , Milky Way
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Narrow gap seals around windows, panel seams & such?

The Captain has always worked for us. It may take several applications but they are quick & easy...and the stuff does work. Its idivisibabel, plus 'ya can't see it.🥴

Sooper looking rig BTW

Bob
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Old 04-01-2021, 09:32 AM   #9
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I second Sikaflex 221. It seems to stay flexible. I have some sealing to do on panels and will use Alcoa gutter seal for those while using Sikaflex on the vent stacks and Fantastic Vent Fans. Later in the summer I will be scraping off all the Trempro I put around the front windows because it has that black mold and dirt.
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