OK, Duane, but years of using 99% isoprop, available at most pharmacies, tells me it works fine. It's cheap and available, so I don't worry about replacing the bottle each year. -- Tom Fine ----- Original Message ----- From: "H D Goldman" <[log in to unmask]> To: <[log in to unmask]> Sent: Tuesday, November 12, 2013 8:34 PM Subject: Re: [ARSCLIST] Revox tape deck cleaning kit any good? > Hi Tom, > > To clarify, my comments were about pure 1-propanol, aka n-propyl alcohol/n-propanol, and not about > 2-propanol, aka iso-propanol. This two chemicals represent 3-carbon single alcohols but they have > different chemical characteristics are are not necessarily interchangeable esp. in applications to > rubbers,plastics & record cleaning. > > Regards, > > Duane Goldman > > On Nov 12, 2013, at 6:41 PM, Tom Fine <[log in to unmask]> wrote: > >> Agree about 99% isoprop being just fine for heads and guides. Good to know about HDPE containers. >> I always wondered how long the isoprop remained at least somewhat alcoholic and not mainly water. >> My general MO is to write the date I get it on the bottle and replace it after a year. >> >> Old-school head cleaner was actually mostly xylene, and was usually kept in a glass or metal >> container. I have old, I mean old, Ampex head cleaner that still works just fine. But I generally >> use isoprop under the theory that it's less harsh, which may or may not be true! >> >> -- Tom Fine >> >> ----- Original Message ----- From: "H D Goldman" <[log in to unmask]> >> To: <[log in to unmask]> >> Sent: Tuesday, November 12, 2013 6:46 PM >> Subject: Re: [ARSCLIST] Revox tape deck cleaning kit any good? >> >> >>> Hi Jan, Tom, >>> >>> Years ago we found that Reagent grade 1-propanol was a highly effective & safe cleaner of tape >>> heads & guides. It can be stored long term in HDPE drip tip containers. We've kept small >>> quantities in the bottles used for our stylus cleaner for years w/o any problems. Most >>> university organic chemistry labs have the solvent on hand & would probably give you a few ml. >>> >>> Duane Goldman >>> >>> >>> On Nov 12, 2013, at 5:04 PM, Tom Fine <[log in to unmask]> wrote: >>> >>>> Probably just the standard head cleaning solvent and swabs from the day. The only thing I'd >>>> worry about is if the solvent is stable in a plastic bottle. Maybe, maybe not. >>>> >>>> -- Tom Fine >>>> >>>> ----- Original Message ----- From: "Jan Myren" <[log in to unmask]> >>>> To: <[log in to unmask]> >>>> Sent: Tuesday, November 12, 2013 5:59 PM >>>> Subject: [ARSCLIST] Revox tape deck cleaning kit any good? >>>> >>>>> Hi! >>>>> >>>>> Does anybody have any experience with this cleaning kit from Revox for tapehead cleaning on >>>>> reel to reel tape recorders? >>>>> >>>>> http://www.ebay.ca/itm/REVOX-Tape-Deck-Head-Cleaning-Kit-/130713627452?ssPageName=ADME:X:RTQ:CA:1123 >>>>> >>>>> >>>>> All the best >>>>> jan >>> >>> >>> H D Goldman Lagniappe Chemicals Ltd. >>> PO Box 37066 St. Louis, MO 63141 USA >>> v/f 314 205 1388 [log in to unmask] >>> >> > >