08-31-2012, 07:16 AM
I've used paraffin (candle wax) before on stubborn threads.
Borax makes a good flux for lead alloy melts as well. Sprinkle a layer on top of the melt in a bottom pour furnace, and it forms a glass seal that prevents the surface from oxidizing.
A staple in my shop for cleaning/rust prevention is a home made mixture called "Ed's Red". It is equal parts of:
Kerosene
Odorless Mineral Spirits
Acetone
Dextron II (ATF)
You have to store it in a glass or metal container, as it will permeate most plastics. Which makes it a perfect solvent for removing plastic wad fouling from shotguns too!
Borax makes a good flux for lead alloy melts as well. Sprinkle a layer on top of the melt in a bottom pour furnace, and it forms a glass seal that prevents the surface from oxidizing.
A staple in my shop for cleaning/rust prevention is a home made mixture called "Ed's Red". It is equal parts of:
Kerosene
Odorless Mineral Spirits
Acetone
Dextron II (ATF)
You have to store it in a glass or metal container, as it will permeate most plastics. Which makes it a perfect solvent for removing plastic wad fouling from shotguns too!
Willie