Premium RV Black Streak Remover and Bug Remover - Ultrafoam - 32 oz - Thetford 32816 [VERSATILITY]: Premium RV Black Streak and Bug Remover Ultrafoam works on cars, trucks, vans, RVs, motorcycles, or boats [PERFORMANCE]: Effectively removes black streaks, bugs and other tough stains [SAFETY]: Black Streak and Bug Remover is nontoxic, nonflammable, 100% biodegradable, and won't harm the seals around windows [CONVENIENCE]: Easy-to-use spray & wipe formula. No hard scrubbing is necessary thanks to the foaming action [UTILITY]: Safe for gel-coats, fiberglass, painted aluminum and decals, it is nonflammable, nontoxic and biodegradable