How To: Remove rust - 7 different products.

Naval Jelly worked the best @ removal, and has a ton of uses on anything metal. It can be poured, rubbed, brushed on, or soaked - meaning you can apply it to anything as it is viscous. I imagine you could brush it onto vertical surfaces & such, and it’ll have a decent bit of retention. Think thick pepto bismol.

The por 15 has alot of uses, there is a link in the thread link @ the top of the first post, by Newman, to the data sheet. There are a ton of uses, though it may not be a pliable as the jelly. Also, it impregnates metal with a protective coating.

Mind you, both of these are pretty reusable too… after soaking the initial tools in the stuff, I simply removed those tools and added more. Still effective.