In researching why metal rusts, (Something Canadians do) I came across some interesting info on rust conversion - I've experimented with several products - everyone wants $50 a bottle for their own special product, but what seems to work is microcrystaline zink phospate. This is zink in a solution of phosphoric acid. I found a local source in Ontario, but only available by the huge drum - 500Gal and is sold by the kilo weight - $2 a kilo - maybe a gallon's worth?

I also found the POR-15 has gallon quantities -@$45 per gallon of the same stuff. Probably watered down even more. (make me want to get into the chemical snake-oil business for stupid car restorers - at those profits - $2 gets you $45)

Basically a watery liquid that you spray on rust. After drying, it leaves a white power which you rinse off with water and the zink is chemically bonded to the metal while desolving the rust.

Car manufacturers use this stuff to dip bodies before primer and paint.

Zeibart also uses it to treate underbodies on older cars before the black coating.

I also bought some other black gooey stuff based on tanic acid which also convers rust to a black-like primer. I plan to use this in the trunk.

In fact - I'm going to go do it now -


Has anyone tried anything else?
Soon....