>>The latter 91% is safe for many uses and is water clear it leaves no residue >>(however one must assure its dry after).
And what type of microscope did you use to determine there is no residue ? On Thu, Jan 5, 2017 at 9:23 AM, allison <ajp...@verizon.net> wrote: > On 1/5/17 8:36 AM, E. Groenenberg wrote: >> >> We have a similar common name for it being 'brand spiritus'. >> >> It's basically 90% - 92% alcohol, with the rest being methanol and water >> and it's color is blue-ish. >> >> Ed >> -- > > > In the past from the local print and painting supplier "De-natured alcohol" > Usually in a pint or gallon can (this is USA). I also buy Lacquer thinner, > Acetone, Ethanol (99.4pure) and MEK in the same form all powerful > solvents and better than 99% pure. > > Rubbing alcohol is ok save for its isopropanol plus water (either 70% or > 91%). > The latter 91% is safe for many uses and is water clear it leaves no residue > (however one must assure its dry after). > > There is also Rubbing Alcohol that is ethanol plus water with an added > denaturant > (toxic) to render it safe for skin use and not for drinking. > > GC chemicals supplies two different residue free solvent cleaners. > > My favorite head cleaner was banned in many places Xylene, takes curd > off like no tomorrow. May melt the user too. > > As to cleaning and repairing the drum... DO NOT TOUCH ANYTHING UNTIL > YOU ARE SURE of the process to be applied. That applies to solvents, wipes, > and all. Use gloves! Test solvents near an edge or other area that is not > critical. > > > Allison > > >> Ik email, dus ik besta. >> BTC : 1J5fajt8ptyZ2V1YURj3YJZhe5j3fJVSHN >> LTC : LP2WuEmYPbpWUBqMFGJfdm7pdHEW7fKvDz >> >> On Thu, January 5, 2017 14:22, Noel Chiappa wrote: >>> >>> > From: Klemens Krause >>> >>> > We clean our RK05 disks in a very robust way: with cheap burning >>> spirit >>> > and paper towels. ... We rubbed away thick black traces from >>> occasional >>> > head crashes and we never removed the oxide coating with this >>> torture. >>> >>> I am about to get a large batch of RK05 packs, so I am interested in the >>> details of this. >>> >>> First, what is 'burning spirit'? (I assume this is a straight translation >>> into English of some German term, but not knowing German... :-) After >>> poking >>> around with Google for a while (hampered no little by the fact that it's >>> the >>> name of a band, and also a term in World of Warcraft :-), it seems like >>> it >>> might be acetone? >>> >>> Noel >>> >> > >
