From: Neven Peko <neven.p...@gmail.com> Subject: [Consdistlist] conservation of mammoth bone and tusk
Dear colleagues, Do you have any idea how to consolidate [mammoth tusk] without using solvents such as ethanol or acetone? We would prefer to use a water-based system because of health risks. Also, a large part of our mammoth bones collection was treated in sixties by immersion in diluted PVA or PVAc glue (white thick wood glue). Do you have any idea how to chemically remove it without affecting the very porous bone? Also, do you have any suggestions on how to consolidate bone previously treated in this manner? Thank you all! Neven I did my B.Sc. dissertation at the Institute of Archaeology, University of London on The Consolidation of Archaeological Bone. I found that the PVA emulsions were not appropriate for consolidation as they did not penetrate well. I recommend the use of the acrylic colloidal dispersion, Primal WS-24, primarily because it is a water-based system. Depending on when the previous consolidation was done, it may be very difficult to remove old PVA of PVAc white glue. I have also recommended WS-24 for palaeontological material. For more information see my publications: Koob, Stephen P., "Consolidation with acrylic colloidal dispersions", Paper presented to the Ninth Annual Meeting of the American Institute for Conservation, AIC Preprints, 1981, pp. 86-89; Koob, Stephen P., "The consolidation of archaeological bone", Paper presented to the 1984 IIC Congress, Paris, Adhesives and Consolidants Preprints, pp. 98 102. Stephen Koob The Corning Museum of Glass One Museum Way Corning, NY 14830 ****** Unsubscribe by sending a message to consdistlist-le...@cool.conservation-us.org Archives through August 2016 at http://cool.conservation-us.org/byform/mailing-lists/cdl/ Archives from September 2016 onward at https://www.mail-archive.com/consdistlist@cool.conservation-us.org/
