Ultrasonic descaler for paint removal

I have a case where I'm thinking about using an ultrasonic descaler
for the removal of paint layers.  The case concerns two 20th century
Japanese Shi-Shi where I have to remove all the non-original paint
layers.  Since I have seen the practical use of the ultrasonic
descaler at the conservation institute of Castilla y Leon in Spain,
it looks like the results of this device are very promising and less
time consuming than removal by hand.  I was wondering if someone
could share her or his experiences with me because it is hard to
find publications concerning the use of this tool in conservation
work.  I would like to get a clear view on the advantages and
disadvantages before buying or renting such a tool.  Brand names are
also very useful. Furthermore, it should be a device which does not
use water.

Vincent Cattersel
Conservator and restorer of polychrome and wooden objects
Heiststeenweg 131
2580 Beerzel
Belgium


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                  Conservation DistList Instance 23:26
                Distributed: Wednesday, January 20, 2010
                       Message Id: cdl-23-26-021
                                  ***