![]() I'd advise you to wear gloves, as it will stain your skin. Home Depot carries it, among other places. ![]() I used it to clean photographic processing trays and tanks in the 70's an 80's. I've still got some 8mm Mauser brass that received that treatment back in the 70s and 80s, been tumbled in corn husk a couple of times since then, but the color is still yellow.Probably sulfamic acid. You could look into it and maybe find out what the substance was, and maybe it might have been HC. I think the crystals were some sort of acid. The liquid turned black, but was supposedly reusable, although I could never get it to work a second time. One spread it out on a newspaper in the sun to dry. The brass came out clean but yellowish, and I mean sort of half-ripe banana yellow, not shiny golden. glass jar, dumped in the brass, and shook the jar for awhile. You mixed it with warm water preferably in a 1 gal. Inside the can was a cellophane envelope with some yellowish crystals in it. Theyll be taking you on a jazz journey from the Crescent City to the Big Apple, and. ![]() It came in a little metal can like a miniature paint can-you had to pry the lid off with a screwdriver or similar. FREE sets benefitting Red Cross Hurricane Relief efforts. ![]() Once upon a time, as all good stories begin, there was a product named "Case Bright". ![]()
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