I apologize if I gave bad information as per the steel wool. I oftentimes rebuild old firearms that are in pieces, literally, or just start with a receiver or barreled action. I have been using very fine steel wool and very light pressure with plenty of oil for quite a while in order to clean of the freckles of surface rust off of metal surfaces. I did not know a product such as frontier 45 existed before today, but you can be sure that I will be ordering some soon to try. I love this site for this kind of information and the people that are willing to share it!