Got a full size FA tumbler drum on a homemade roller setup that I have been using for 2 years now without issue. I run stainless pins (will switch to Southern Shine flakes after later on) and use the standard Lemi-Shine mixture with RO water. I have a digital timer and always tumble the same amount of brass for the same time.
The other day I forgot I had tumbled some and it sat overnight and came out black, no big deal…or so I thought. I rinsed everything out/off and re-ran the batch. It came out dull looking. I ran another batch and same thing, dull and no luster. Began looking into this and found a slightly brass colored but tacky/sticky to the touch sludge had adhered to all the inside surfaces. I tried 99% rubbing alcohol, 409, and Purple Power without luck to remove this. Straight CLR with a green scrub pad finally took it off. Has anyone else ran into this issue?
Pic is hard to see, but right is how my brass usually looks and left is dull. It’s like a high gloss vs eggshell paint.
The other day I forgot I had tumbled some and it sat overnight and came out black, no big deal…or so I thought. I rinsed everything out/off and re-ran the batch. It came out dull looking. I ran another batch and same thing, dull and no luster. Began looking into this and found a slightly brass colored but tacky/sticky to the touch sludge had adhered to all the inside surfaces. I tried 99% rubbing alcohol, 409, and Purple Power without luck to remove this. Straight CLR with a green scrub pad finally took it off. Has anyone else ran into this issue?
Pic is hard to see, but right is how my brass usually looks and left is dull. It’s like a high gloss vs eggshell paint.
