Library of Congress (home of the National Audio-Visual Conservation Center) uses wet vacuum type cleaners or hand wash with Tergitol 15-S-7 and deionized water but one representative stated they are considering ultrasonic cleaner too.
Pelliott321 wrote:
Its the same tank but in a nice case
I had a long talk with Greg Viggano whom I met at CAF. He is working with American U in their Vinyl archive developing a cleaning solution and methods for their library.
He told me the problem with all the LP ultrasonic cleaners out there, is that the LP's are moving through the solution and this disrupts the micro-bubbles. If you think about it, when hospitals, jewelry, watch makers clean their stuff it is not moving through the solution, so the cleaning action can work unimpeded.
That $4k machine works because it has rollers scrubbing the surface of the record. That's what cleans the records not the US.
Greg gave me a sample of their cleaning solution, and I found it not any better than my soup.