On Feb 3, 11:03*am, "Phil Kangas" wrote:
"Mr.B1ack"

wrote in message
* This may seem irrelevant, but if you are
* grinding a lot of aluminum, creating a lot
* of very fine powder, a serious static
* discharge may ignite it - and aluminum
* burns *very* hot.

Bull****! Mg yes, Alum no way...

Yes it does. Aluminum dust is very explosive:

"On the evening of Oct. 29, 2003, a series of explosions severely
burned three employees, one fatally, and caused property damage to the
Hayes Lemmerz manufacturing plant in Huntington, Ind. The Hayes
Lemmerz plant manufactured
cast aluminum automotive wheels, and the explosions were fueled by
aluminum dust, a combustible by-product of the
production process. " (page 5)

-- http://www.nclabor.com/osha/etta/indguide/ig43.pdf