For storing/keeping bare steel "rust free"I've been reading lots of good comments about a product called "Picklex", more info on the "autobodystore.com" web site.
Yeah, the metal prep works great for converting/cleaning the steel.
But the cleaned steel is still exposed to the humidity and oxygen and electric (static) charge that causes rust.
You need a temporary (?) barrier coating on the steel to cut off the H2O/O2 contacting the bare surface