This evening I started cleaning up a couple of Stanley No 7Cs I picked up last year. Both have some pretty good surface rust but I don't believe it will cause any serious pitting. On the first one, I put the plane iron, iron cap, lever cap and lever cap and cap iron screws in Evaporust about an hour ago. I've used that only a couple of times. The instructions say to allow the rusty parts to stay in there from "1-12 hours". The 12-hour max will come about 6am. I'd prefer not to get up for that. Will the evaporust cause any harm if it's in there longer than 12 hours?
Thanks!