- New
1893 is the Magic Boss rubber roof treatment designed to help protect RV roof membranes from exposure to ultraviolet rays. Its formula contains polyolefin compounds and a UV-protective barrier that helps reduce membrane oxidation, a process associated with the formation of black streaks. Apply to a clean rubber roof according to the product instructions. For best results, clean the roof beforehand with a compatible rubber roof cleaner. Supplied in a 4 L container.