Biocides and sandstone

Donovan Michael Gray <donovang [at] cted__wa__gov> writes

>I'd like to hear from anyone who has experience using ProSoCo's
>"BioWash" and/or "d/2" architectural biocide on sandstone.

Where cleaning is necessary, we rather routinely have been using D/2
on marble, granite, and very occasionally sandstone--but this is in
terms of cemetery treatments (not architectural or structural
cleaning). If our experience is of any assistance, please feel free
to contact me off list.

Michael Trinkley, Ph.D.
Director
Chicora Foundation, Inc.
PO Box 8664
Columbia, SC 29202
803-787-6910


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                  Conservation DistList Instance 17:30
                Distributed: Friday, September 26, 2003
                       Message Id: cdl-17-30-002
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