On 1/23/07, J Worgan <jworgan@porterville.k12.ca.us> wrote:

are you sure its rubbing alcohol?  The heads on cassette recorders and
videotape recorders required the use of denatured alcohol - not rubbing
alcohol - because rubbing alcohol also contains a substance that remains on
the heads after it evaporates which makes the heads get dirty quicker and is
not good for the tapes - surfaced with similar recording material as the
floppies.


No rubbing alcohol but isopropyl alcohol.  True technical iso has as much in common with rubbing alcohol as Everclear has with light beer.  My bottle of isopropyl from MG Chemicals is labeled as 99.953% pure anhydrous alcohol and is specifically labeled for cleaning magnetic media heads.  The label also states it leaves zero residue.

I paid $7.95 per liter at Fry's.




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