Need to re-caulk the fantastic fan and a few other spots. What's the best roof caulking. I know some sailors and others use 3M-5200 but I understand it is all but permanent once put down. Opinions?

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

Someone on another forum recommended 3m 4000UV marine sealant. Anyone have any experience with that?

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1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

There's no replacement for routine R & Ring of caulk. I've been putting-off the caulk R & R from around my Fantastic Fan in my roof's salon area..... Roof leaks are part and parcel of coach ownership. Ask me how I know. When I start driving a Prevost or Newell, most of my roof leak problems will be a thing of the past. However, I have no need of a 45' coach that gets less than 8 mpg (overall) - not in this lifetime anyway.

Lots of anti-silicone exterior roof caulk sentiment out there from what I read.

__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

kerry - I have a fair bit of roofing experience. The normal black roof caulking is useless. Dries, shrinks and peels after a few years. I swear by polyurethane. Won't lose its elasticity, degrade, peel or shrink. Resistant to UV, which is important if exposure is a factor.

Try PL...

http://www.stickwithpl.com/products/detail.asp?PLProductID=21

Good luck.

__________________
Chris
2007 E550 4Matic - 61,000 Km - Iridium Silver, black leather, Sport package, Premium 2 package
2007 GL450 4Matic - 62,000 Km - Obsidian Black Metallic, black leather, all options
1998 E430 - sold
1989 300E - 333,000 Km - sold
1977 280E - sold
1971 250 - retired

"And a frign hat. They gave me a hat at the annual benefits meeting. I said. how does this benefit me. I dont have anything from the company.. So they gave me a hat." - TheDon