Donald,

Yes pure polymer Aviation polish sealer .Been using this product for many years now. Last week end I washed the 310 Classic MH and sealed it ,you should see the snow fall off it now . .( snowing in Tulsa big time about 1 inch flakes looks like 3 inch on the ground ) .The Sealer has a UV
protectant , restores the finish and seals it , makes that old clear coat shine plus it is flexible..

JIM WESTON
POLISHING AMERICANS AIRSTREAMS
www.airmarktools.net E MAIL------sales@airmarktools.net