I just bought an H&G 8 cavity mould "as is". I bought it CHEAP so I thought it might make a great "project"mould. It was pretty rusted at some point in its life....probably not all that long ago.
First, it is all there. Handles are solid. It seems to close tightly with no serious hangups on the alignment pins. Unfortunately the guy I bought it from had taken a wire wheel to the outside of the mould.
For that act of heresy may he burn in hell for an eternity.....but it is what it is. I can live with a bright shiny outside of a mould.
Here is the problem: there are a few cavities that have a very light rust in them. Nothing serious but the surface rust is there.
I'd like to do something to remove the surface rust (again, very light) in those places where it exists.
I am soaking the cavities in WD40 to soften the rust.
Any suggestions on how to best remove this rust? I'm willing to put in the time to do it a slowly and do it right.
If I succeed, I will have a (hopefully) great casting mould.
Tips and tricks would be most appreciated.