Next time, put the magnesium shavings at the bottom of the pile... and for what it's worth, a good many years ago ( about 20), I burned a hole through an aluminum ash-tray AND a 3/4 inch coffee table (quite unintentionally) with a quarter sized pile of scrapings from a Doan bar... even though they are slow and laborious, they DO work.

Troy

P.S. By the way, the shavings were on TOP of the ash-tray and table, and burned DOWN through them... so much for hanging it on physics <img src="/images/graemlins/shocked.gif" alt="" /> <img src="/images/graemlins/wink.gif" alt="" /> <img src="/images/graemlins/grin.gif" alt="" />