I made some rubber gaskets for my marker lights but still had to use some caulk. Mine are due to be re-caulked and I plan to use some of the Stone Mason's Gutter and Siding Clear Thermoplastic seal that Winnebago recommends for those. I bought the Stone Mason's at the Winne factory parts store in September and it was overpriced ($18 per tube). Geocel Proflex clear sealant is similar and you can usually get that for about $8.00 per tube.
'07 Country Coach Allure 470 Siskiyou Summit #31578, Cummins ISL 425; 2014 Ford F150 toad; Air Force One Toad Brake.
Glen Allen, VA; Smith Mountain Lake, VA.