Hola Margarida, I know a few institutions use Disc Doctor's miracle record cleaner. It has the advantage of being safe for vinyl, shellac and lacquer discs. However, I am not crazy about the brushes they sell --you have to be careful, or they may shed fibers when used vigorously. http://www.discdoc.com The standard cleaning machine is of course the Keith Monks machine. Although expensive, everyone seems to agree that it pays for itself for very large jobs. http://www.keithmonks-rcm.co.uk/ Sort, Marc Sueiro On 1/22/09, Margarida Ullate Estanyol <[log in to unmask]> wrote: > Dear Listmembers, > > > > The Biblioteca de Catalunya in Barcelona (Spain) has been using Nitty > Gritty cleaning fluids Pure1 (78 rpm) and Pure2 (vinyls) and machines > for many years, with pretty good results. In addition to our experience, > our Preservation team is trying to gather all recommendations regarding > the process of cleaning, and we'd very much appreciate yours. > > > > We are not quite satisfied with Nitty Gritty services in Spain, so we > stopped buying them. Our cleaning machine is now Clearaudio SMART > MATRIX, but we still used Nitty Gritty fluids, applied manually on the > discs surface. > > > > We gathered many information from specialised bibliography. Nitty Gritty > in the USA kindky sent to us the components of both fluids Pure 1 and 2. > But we would like to ask ARSC members about their experience in cleaning > old 78's, acetates, lacquer discs and vinyls. > > > > In orther not to bother the list with this, you could send the answers > to the e-mail stated below. > > > > Many thanks in advance, > > > > Margarida Ullate i Estanyol > > Fonoteca > > Biblioteca de Catalunya > > Hospital, 56 > > 08001 Barcelona > > +34 93270 2300 (2166) > > [log in to unmask] > > > > > -- Marcos Sueiro Bal Audio Engineer 718.902.7441