I have been experimenting using many types of media for brass tumbling/vibrating equipment. All work pretty well average cost for about 2 pounds is $19.00.
One day I was in a pet store shopping for my son's dog and noticed walnut shell cat litter. I use to use walnut shell as a blasting media for cleaning aluminum engine parts. I bought a 26 pound bag for $19.56 put it in my tumbler with some shitty brass. A couple of hours later wow clean as a whistle.
I added some Tarnex to the walnut shells and ran some more brass. They came out shiner and looked polished. I rinsed them in baking soda water to kill any acid.
So for about the same cost tumbling media from the sporting goods store you can get 26 pounds verse 2 pounds.
One day I was in a pet store shopping for my son's dog and noticed walnut shell cat litter. I use to use walnut shell as a blasting media for cleaning aluminum engine parts. I bought a 26 pound bag for $19.56 put it in my tumbler with some shitty brass. A couple of hours later wow clean as a whistle.
I added some Tarnex to the walnut shells and ran some more brass. They came out shiner and looked polished. I rinsed them in baking soda water to kill any acid.
So for about the same cost tumbling media from the sporting goods store you can get 26 pounds verse 2 pounds.