Does silicone have any place on a travel trailer?

Anyone still on the fence about silicone or wishing to find out how it performs can do a simple experiment. Gun a bead of silicone onto a piece of metal and put it in the backyard or next to where you park your RV. Leave it in the weather for two years and report back your findings.

Silicone is an excellent sealant when in compression between two surfaces and not exposed to UV. Left exposed, not so much. The Geocel polymer sealants (Proflex being one) are far superior to silicone on an RV.