This process is a two part, one to take the paint off the second part is a
mild acid and it removes all of the rust and I mean all way down in the
crackes where sand blasting won't get. .The next four are the processes
in acid in different stages in and out of the tank as you can see the
acid is not strong. it takes about a week if the body is real rusty, in
my case it was shorter as it diden't have much rust. It has to be rinsed
off every day with water.