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Hi Eric, Good to hear from you. On an as needed basis, I do recommend keeping brushes used on acetate & shellac surfaces separate. When customers are not interested in a second pair, I recommend cleaning acetates first or changing the pad before cleaning the acetate discs. The modified MRC uses a high purity, biological grade buffer that operates above pH 7. The LOC has been sent this solution as have a number of the List members. We’ve had very good responses from users. The buffer is expensive even when used in modest amounts & that price is reflected in final price. Regards, Duane Goldman H D Goldman Lagniappe Chemicals Ltd. PO Box 37066 St. Louis, MO 63141 USA v/f 314 205 1388 [log in to unmask] > On Jan 16, 2016, at 3:24 PM, Eric Jacobs <[log in to unmask]> wrote: > > Hi Duane, > > Is your buffer modification a base (i.e. pH > 7)? If so, is the modified cleaning solution available as a concentrate? Also, will the modified solution work with shellacs? > > An important precaution to add to your suggestions regarding "dust", we don't use the same brushes with shellacs and "acetates" because shellacs can shed abrasives that can damage the surface/grooves of acetates. > > ~ Eric Jacobs > > The Audio Archive > tel:408-221-2128 > mailto:[log in to unmask] > http://www.theaudioarchive.com > > > On Jan 16, 2016, at 12:46 PM, H D Goldman <[log in to unmask]> wrote: > > Hi Eric, > > As you may know, we have also modified our Miracle Record Cleaner to improve performance when dealing with “heavy” palmitic acid residues. This is accomplished by using a carefully selected , high-purity buffer to deal with pH change caused by the larger deposits. > > To my understanding, the LOC has found this a useful product. Our own instructions offer a simple, effective approach to dealing with any “dust” left after rinsing & air drying. It’s the same instruction one gives for handling disc media before & after playback: > Apply a carbon fiber brush to vinyl surfaces before & after playback & use an appropriately configured crushed velvet duster for shellac, acetate, lacquer & Edison Diamond surfaces. > > Regards, > > Duane Goldman > > H D Goldman Lagniappe Chemicals Ltd. > PO Box 37066 St. Louis, MO 63141 USA > v/f 314 205 1388 [log in to unmask] > > > > > >> On Jan 16, 2016, at 1:32 PM, Eric Jacobs <[log in to unmask]> wrote: >> >> The benefit of a Keith Monks RCM is that it uses minimal contact as it removes the fluid and contaminants. The thread is used to maintain a gap between the suction head and the grooves - the thread doesn't actually clean the grooves. The thread spool is on a slow continuous gear motor, so new clean thread is continuously in contact with the disc surface. The thread is fine, synthetic, and lintless. >> >> I mention all this because it might be conceivably possible to achieve similar results to the Keith Monks with a manual method, but efficiency,