Volume 33, Issue 57 Maria Melendez Baez discusses problems in consolidating iridescent glass. In Volume 33, Issue 58 Barry Knight suggests that the white appearance resulting from consolidation might be a result of a differing refractive index between the glass and B-72. This should not cause it to turn white. Rather, the problem is high humidity. Consolidating glass with acetone or acetone/ethanol mixtures, will always result in "bloom" if the ambient humidity is high. This problem is worse for ethanol mixtures, as ethanol is extremely hygroscopic.
Stephen Koob The Corning Museum of Glass Corning, NY, USA ****** Unsubscribe by sending a message to consdistlist-le...@cool.conservation-us.org Searchable archives: http://cool.conservation-us.org/byform/mailing-lists/cdl/
