By now I wish this thing was a pop-up! However, just wanted to share I used the Meguiars Flagship Wax/Cleaner. Expensive (30.00) a bottle, purchased at a boat store, however goes on easy, cleans beautifully and comes off easy. Supposely gives excellent RV protection as well as last up to a year. great black streak remover. Friend of mind turned me on to it, uses it on his boat and seems to wrk great. Just wanted to share.