Bob_Maxey@mtn.3com.com
Mon, 18 Jan 1999 12:32:28 -0700
My Dad used dichromates in the 1940s and they are still used now. Many
manufacturers such as Ulano offer them, so I suspect that they are the only
practical ones. Perhaps there are other compounds that are better, but are
perhaps poisonous, or more so than dichromates.
Bob
This archive was generated by hypermail 2.0b3 on Sat Nov 06 1999 - 10:06:42