[Bmacrc]

Thanks so much for the replies.  I’ll get some.  I didn’t know if Newell used anything special.   I’m used Dicor self leveling a couple times in the past.  Thanks again, Bob…

Well, if you're wondering what NEWELL uses for sealing around doors, windows, stainless, etc. it's this stuff. Hard to find. But, the biggest factor that I'm always concerned with...on a roof...is the best for UV resistance.

Got it.  Thanks Steve.  I ordered a tube from Bass Cat Boats.  i've also got some Dicor self leveling coming.  I have a vent fan I would like to reseal and a few other areas.
Thanks for the UroFlex info.  I like to keep a coach as original as I can (if the original was quality).  Thx, Bob...