Auto Kare 0901 1G Ph-Ospho-Ric Plus (4 Pack)

Readies rusted surfaces for painting. When properly applied, will convert rust into a phosphate compound that will act as a primer for painting. An excellent rust corrosion remover on lightly rusted polish steel, removes loose rust, paint, grease and oil from heavy metal surfaces such as structural steel, wrought iron ands ships. Also works great on aluminum and galvanized steel. Two coats are recommended to thoroughly coat and etch the metal.