Wanderloo,
Nothing. The compound I used was simply a cutting/polishing compound and, it basically turned out as you see it. The wax, which was simply "Kit" car wax, is just used to preserve that finish. Contrary to popular belief, NO WAX LASTS! They all don't live much past about 30-45 days. Now, here's the deal. Dirt is dirt. It can be washed off with soap and water and, maybe a tad bit of scrubbing. What was left on that roof was, black, tiny, what I'd call "mold" spots--- a zillion of them. And, the real pain in the a$$ part, the air heads who installed some of the components up there, like the Kingdome and maybe the regular TV antenna, dropped globs of silicone and smeared it in multiple places all over that roof.
I had to scrape them off, literally with a 1 1/2" wide steel, stiff bladed putty knife. Then, when all that was done, I turned the buffer loose on it. I'd do about a 2' x 2' section at a time. Sometimes it took two or three times in the same area to get it all clean, down to the nice, shiny white roof. Other areas were not too bad and I kind of zoomed through them. I didn't even have to be careful around the caulking around all the vents, sky lights etc. That buffing wheel/pad is not that strong, it wouldn't have any effect on that caulking.
But, no doubt about it, it took work, and, like stated, a couple of days, on and off. But, the good part is, it's like that now forever. All I need to do is, about once a month, take up pail of water and a towel, and wipe it down. And, about every three months, give it another coat of wax. That whole process takes me about two to three hours, start to finish. I don't mind, it's not hard. I put on some music and, take my time. The rain water and dust, just slides right off now. Not many folks like messing around on their roof, much less doing that kind of work. But, it's pride thing.
Scott
