Kroil in brass mold?

[Engieman]

Does an application of Kroil in the mold cavities work for brass molds? Been using it in my Saeco and RCBS iron molds for years.....works great.

[MT Chambers]

What are you using it for?

[Engieman]

Using the Kroil on the interior of the mold, facilitates release. Works great, got the idea from this forum. Original post was in 2009, now a sticky in this section (molds).

[runfiverun]

you want the brown patina in the cavity's.
once you get that layer of oxidization in there you'll forget about putting anything else in the cavity's.