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Posted: 5/8/2013 6:41:03 PM EDT
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I have been using a couple of Thumblers Model B high speed tumblers for years now with steel media and water. I have always in teh past used a fewdrops of Dawn and a half ounce od white vinegar added to the water.
Now I'm doing the same and the brass is getting clean inside and out but after 6 hours of tumbling it is very tarnished. Looks like I left it in a creek for a week. Whats changed?? |
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I have the same tumbler modified with timer.
I tumble 4 hours, 2 pounds of 223 brass, 1 tablespoon of Dawn, 1 tablespoon of Lemishine, 1 gallon water, 5 pounds stainless media. Perfect every time. ETA......without knowing your whole formula it's hard to say. You are tumbling much longer than need be, 3 to 4 hours, no more. You don't have enough soap. |
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That seems like a lot of vinegar to me. I use more than a "few drops" of Dawn, too.
Have you changed the level of the water? If you can see water when you've filled the drum, you're using too much. I have been pleased with a small amount of Lemishine and Dawn. But, I'd probably chalk it up to something in the cases that messed up the run. Do 'em again. |
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