Works great when used correctly.
Highly concentrated. Use latex rubber gloves or butyl rubber (goes through everything else) contains high concentration of hydroflouric acid. Spray it on a sponge after diluting of course, then rub on the diamond plate. Wipe off with wet rag and buff with dry towel. Then use your favorite polish or buffing wheel. Be sure to keep off of the paint.
Rating: 5 stars