Mineral spirits and silicone advice

[brroberts]

Polyurethane, butyl, silicon, polysulfide, acrylic, latex, and combinations of these all have there place. Some are indoor, some outdoor, and some both. It all comes down to the formulation and application. Some of them can cross the line to mild to very strong adhesives. I am not a caulk, adhesive, or sealant expert, but I know how to research when needed. There are outdoor silicons. So to say to never use silicon is going too far in my opinion. I use it, but not for everything. I too sometimes grab a less than ideal product at times if it’s what I have on hand and it’s an open cartridge or tube. RV’s most commonly use Lexel, Geocel/Proflex, butyl tape, or some type of Dicor. That’s not exhaustive, but typical. ETI seems to use a lot of Proflex, but I have found silicon on my new 2021 ETI 19. Mostly on wiring penetrations.