I have seen it stated by some folks that they will not use silicone caulk on their RV. Can someone please explain why?

Thanks!
Jeff

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2007 Hi-Lo 22T (2007-2015)
2014 Laredo 274RB (2015-Present)
2014 F-150 XLT SuperCrew 4x4 w/EcoBoost

Great post, Jeff. I'd like the answer too. I use silicone almost everywhere and find it superior to just about anything else. It never seems to fail, even when subjected to "flexing" or other movement. I tend to use the kind that can be painted over though, because that's what I normally do.

- Jack

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Hi-Lo 1707T - Tire Minder TPMS on Tow Vehicle and Trailer, 300W Solar Battery Charger, Equal-i-zer WDH, Progressive Dynamics Converter, Fan-Tastic Fan, LiFePO4 battery 12V DC Electrical System, SoftStartRV mounted on A/C
2024 F150 Platinum FX4 3.5L PowerBoost SCrew

I've always used Silicone on campers with no problems.

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2001 Towlite 24TD
2003 Chevy Avalanche Z71
Past campers: 1989 Funlite 21', 1997 TrailManor, 1979 Holiday Rambler MH., 1982 Palomino PopUP, tent!

Me too! I'm sure there are other products that work as well if not better.

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My Great Wife Joyce
2018 Jayco Jay Flight 21QB
Formerly owned 1705T and 2310H
2012 F150 4X4 SuperCrew EcoBoost w/Leer Cap
Reese WD Strait-Line Hitch
Amateur Radio K3EXU

I prefer not to use silicon caulking because it has no UV protection. UV rays breaks down the silicon which can cause the caulk to fail.

I use a polyurethane caulking commonly known as Sikaflex 1A for all my seams on the trailer since is has UV protection.

I stay away from tripolymer because it has rubber as an ingredient that tends to dry out and crack.

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Les & Patricia
2006 22ft towlite (replaces 97 21TL)
2006 Toyota tacoma pre-runner 4.0 L V-6 quad cab
w/ 98 chevy Powervision towing mirrors
2017 Chevy Silverado 1500 5.3 v8 (replaces Toyota)
2 Hobie mirage pedal drive kayaks