It is easy to spray on and cover the entire area to be cleaned. We found that what it does is clean away the oxidation from aluminum so that when you use aluminum polish the excess black oxidation doesn't clog your towel which prevents the polish from achieving the highest shine. So as a two part system for cleaning metal and especially aluminum this is a must product. It saves a lot of time and the results are twice what they would be without it.

Pleased with the product. I would like to save money by buying in bulk and re-filling the small bottles.

Works great! Had to do 3 applications to the really bad build up spots but all in all the product works great! I'll be cleaning yearly for now on. The job that I did was 13 yrs old.👍

We used this as the 2nd step to clean our boats pontoons....it took off about 5 years of algae/staining and made the pontoons look great.

Great for snowmobile tunnels and bare aluminum works great highly recommend.