6 Jan
2017
6 Jan
'17
6:11 a.m.
>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 <ajp166 at 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
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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