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Aluminium Flake Powder Ball Mill Safety

Page 1 of 2 - making dark aluminum powder - posted in pyrotechnics hey guys its been a long time but im back to pyro yesterday i started making some dark aluminum powder with shredded aluminum foil and a heaping tablespoon of charcoal dust.I used my ball mill which is a modified harbor freight rock tumbler with 3lb drums and lead-antimony balls.I remember someone saying that since hardened.

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