Boolit Casting, à new experience begins

[WinterSoldier]

The lemon juice thing is a good idea.

I usually keep my steel molds coated liberally in motor oil, since its so humid here and they rust fast.

I'll give you a "clue". If exposed to high humidity, the steel pins in aluminum molds will rust. All of my molds are in controlled temperature/humidity except my 5.56mm Lee which I was getting ready to use several years ago but left in a shed, never used. The pins on it were rusted quite significantly when I looked at it a couple of days ago. I use Ballistol on almost everything unless I think it might attack the material. It will prevent and even remove rust and will prevent rust even if mixed with water.

And... BTW: I suspect you will find that your "steel" molds are IRON.

I actually have a preference of brass over aluminum molds in cases were custom mold makers will use either.