Does anyone out there use an ultra-sonic cleaner to wash artifacts?  We have
one here, but it barely removes any dirt from the ceramics and glass I tried
it out on.   Am I doing something wrong or are they worthless?
Roberta Charpentier
Archaeology Lab Supervisor
Mashantucket Pequot Museum and Research Center
110 Pequot Trail
Mashantucket, CT  06339
Email:  [log in to unmask] <mailto:[log in to unmask]>
Phone:  860-396-6936
Fax:  860-396-6914