Flitz Tumbler Media Additive, Brass Cleaner and Metal Polish, Ammonia-Free Brass Polish, Cut Tumbling Time in Half, 7.6oz
This will not harm any metal or primer and will not stress brass, no Ammonia, no buildup. This is suitable for corn cob, walnut or other media and cuts tumbling time in half and cleans polishes and protects brass, nickel and copper and is eco-safe product.