Originally Posted by John68040
So I've been looking up rust converters and have read mixed reviews....
....The whole floor is light surface rust. I want to stop it and keep it from turning into rot. Are there any better options? Media blasting?
They do convert the rust to "something".
You CAN paint this "something".
But there is a good chance that someday sooner or later that acid will creep through your paint and do nasty things. Why risk it? If you can abrade the metal until it's shinny clean, and cut out the cancer spots/weld in patches,...
An Epoxy will last many more years than any "Rust Converter" could ever dream of.