Use the softest steel wool and some lite gun oil with great care. do not rub to hard. take your time and dont try all in one sitting, go back several times to work on taking care
Blue is a type of rust finish
if it is a valuable shotgun you are trying to restore, use toothpaste. The abrasive material in toothpaste will be enough to remove surface rust without damaging the blue finish. If the rust is deeper, try an auto polishing compound... if it is real deep, use a 4" angle grinder. If you polish off the bluing, be sure to touch it up with cold blue or it will rust again.
no
It literally melts rust without scrubbing
"Rust" is the result of a reaction between iron and oxygen. Copper has no iron in it, so does not rust. It can corrode, though, and yield a bright whitish-blue material.
will objects rust more quickly in salt water or plain water without salt
The eastern bluebird.
Mars is the red color of rust.
I have rust stains in my kitchen sink. What tools or products are available for cleaning rust from sinks without scratching them?
rust
copper turns to blue-green copper oxide.
The number one cause of rust is oxygen. Water accelerates the process but it can't happen without oxygen.