Jenolite is very expensive, and there's no way any of the cars will have every last trace of rust cut out and replaced with shiny metal.
However, phosphoric acid, as far as I know, is used on farms - Something to do with wiping cows I think. I've been led to believe it's a great deal cheaper than Jenolite too.
Does anyone know any more about it? Would seem to be a very cost effective alternative going by what I've heard, but somebody probably knows a good reason not to do it!
