Getting rid of rust on some axle shafts using rustoleum rust reformer.

I got a set of axle shafts to use as spares on the trail. These came out of a salvaged axle so they're rusty, they're fine otherwise. I'm going to try to get rid of the rust using some rustoleum rust reformer. I'm assuming it's just phosphoric acid. It was $8 at autozone.

First I'm using sandpaper to clean up some of the rust.

It already looks good, even without the rust remover product!!!

This is the product I'll be using. It says in 15 minutes it turns the rust into a black, paint-able surface.

I'm applying it with a toothbrush.

Now it's time to wait 15 minutes.

It worked. The rust definitely turned into a black surface.