Anything other than silicone..
Ive learned on RV forums new silicone caulk will not adhere and seal to old and have avoided it like the plague since then, also considering how difficult it is to remove it. Which type of caulk ca...
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I have to say there are very few places on my coach that I'd use silicone because of how hard it is to maintain. Also, at some point almost all caulking needs to be addressed at sometime or another because the putty tape behind starts to oose in the heat and push out on the caulking. My ORV came with a product called GEO-Cell as the caulking on all sidewall penetrations. Though it doesn't have the life span silicone has, it is easy to remove carefully with a heat gun and a rounded/dulled putty knife. Then I remove any remaining goo with mineral spirits. The final cleaning is with alcohol. Then I use the GEO-cell caulk. It flows nicer than silicone with bit of a self-leveling feature but doesn'tsag. As would be expected I use Dicor on the roof.
