Cleaning 14K White Gold Casting

I have been doing some casting with the 14KW heads in place. After
the casting, the 14KY is nice and bright however the 14KW head is
very dark almost black… It takes forever to polish the head and
parts of the head is almost impossible to get into… Anyone have
something that I can use to clean up the finished casting?

I have been doing some casting with the 14KW heads in place. After
the casting, the 14KY is nice and bright however the 14KW head is
very dark almost black... It takes forever to polish the head and
parts of the head is almost impossible to get into... Anyone have
something that I can use to clean up the finished casting? 

Bombing or electrosrtipping will get it white again.

Bruce D. Holmgrain
JA Certified Master Benchjeweler

Try a nitric acid bright dip (50/50). Just a few seconds should do
it. Maybe a really light sand (bead) blast. Magnetic tumbler?

L F Brown
L.F.Brown Goldwork