What's that stuff made from? I have used a phosphoric acid gel that I picked up at the Kuester's Hardware store a few years back. I used one of them hard plastic scrub pads and lots of elbow grease to cleam my aluminum bass boat. I got it nice and shiny and new looking. Then the first time I went fishing in the pits the ring around the collar was right back on the boat. I gave up. I am not about to spend two or three more days cleaning that boat just to have the boat ruined after just one day on the water. Those old coal mine pits are hard on my boat. Makes me wonder what's in the water and at the bottom of these 60 ft deep strip pit lakes.

Regards,

Moose1am