I was wondering how often do you clean your brass moulds?
I had lead spotting on the faces of 2 of my 9mm moulds, so I decided to clean them.
I disassembled them, coated with Kroil and set inside a glass dish. I waited a week.
I then scrubbed them with a paper towel, that removed some minor spots. I then used a bamboo skewer to scrape at some more spots. I still had some lead that wasn't coming off, it was stuck on the really well, so used a lead remover patch from Birchwood Casey to get it off.
The moulds look good now, but in the process I removed some of the the oxidized brass. Oxidizing is preferred to keep the lead from sticking.
In the past I have ran my lead temps pretty hot, causing the lead to stick to the mould. I think I have that under control now that I have a PID.
What do you think? Opinions? Expert advice?