Re: Caring for microscopes

Richard J Kinch wrote:
Kevin Cunningham writes:

Heptane is safe but hard to get ...

Light naphthenic petroleum distillate is sold by the gallon in a
"Coleman Fuel" disguise at WalMart. You can count on about 2X the
going gasoline price.

Though corrections on its applicability are welcome, I use naptha by the
gallon
which is available at any paint store.

On another point, wet sanding is about 30% more effective than dry sanding.
And that is what always bothers me about rubbing anything wet, not that
Kevin
doesn't do it, not that I don't. Sometimes kinetic effort is required to
dislodge
coatings and aggregations. But the idea of rubbing something "in" against
vulnerable
components is not one I cherish.

There is a device I have used on other things called a Cavitron which uses
localized
ultrasonic action to dislodge material. Although it would certainly be
slower than
wet and swab, has anyone tried it in certain optic cases? Also, what about
deionizing
as a preliminary step in the cleaning process?

Regards,

Edward Hennessey


.

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