Dirt Sticking to Trempro 635

[Pretzeltown]

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.

I’ve used trempro 635 for the entire project so far. Dirt and grime stick to this stuff like crazy and it doesn’t 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!

[Bubba L]

I’ve 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. It’ll be interesting to hear other’s suggestions. Take care and good luck.

[Pretzeltown]

Any suggestion on where to buy a tube? Colors?

[GMFL]

Sikaflex 221

[Bubba L]

Originally Posted by Pretzeltown

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 it’s a polyurethane, others may work as well. It’s not expensive, so give it a whirl.

[guskmg]

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.
guskmg

[Canadiangirl]

Gorgeous Paint job ! I am slowly prepping for paint this spring ... Also keeping the aluminum unpainted on the frames , love the contrast . I don’t know about sealant ... I just used trempro 635 on a bunch of spots as I didn’t realize it would get dirty ! Would love any tips you have on painting !

[ROBERT CROSS]

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
🇺🇸

[davidz71]

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.