I need some help please
Over the last year I have began collecting a pretty good set of hand planes. I have been incorporating them into my woodworking builds so they are not just to look at. I have enough that I built a dedicated cabinet to hold them. They are at an inclined deck and held in place with a rare earth magnet. So here is my problem. All of my planes have developed a line of rust down the sole of the plane. My shop is conditioned and I have moisture bags in the cabinet. I have put top coat on all of the raw iron. What am I missing? Is this cause by the magnet? Has anybody else had this problem? Your help will be very much appreciated!!!