[meteorite-list] Why not oil /diamond blades for cutting meteorites?

From: Adam Hupe <adamhupe_at_meteoritecentral.com>
Date: Thu Apr 22 10:32:52 2004
Message-ID: <030c01c40f0c$13448ba0$ad971018_at_attbi.com>

Dear Bill,

I have a huge amount of respect for your chemical engineering and product
development. I was trained in material preparation by the so called old
school at the University of Washington and have had zero problems. The only
issue with old school techniques is that they are very time consuming as I
was told there are no shortcuts to good material preparation. I am all ears
to anything your laboratory offers that will guarantee a simpler way to
material preparation.

All the best,


----- Original Message -----
From: "Bill Mason III" <bmason3_at_comcast.net>
To: "'Adam Hupe'" <adamhupe_at_comcast.net>;
Sent: Saturday, March 20, 2004 5:05 PM
Subject: RE: [meteorite-list] Why not oil /diamond blades for cutting

Dear Adam,
Seems that new technology for grinding and cutting fluids is being
ignored. I have a water based additive for fluids that permit cooling,
lubrication and prevents corrosion of ferrous metals. VpCI-435. Have been
working on H-5 slices in our laboratory. Results soon to be published.
There are opportunities to save our collections through new
technology if we open our minds to 2000 state of the art chemistry.

Bill Mason "Rusty"

-----Original Message-----
From: meteorite-list-admin_at_meteoritecentral.com
[mailto:meteorite-list-admin_at_meteoritecentral.com] On Behalf Of Adam Hupe
Sent: Saturday, March 20, 2004 1:22 PM
To: meteorite-list_at_meteoritecentral.com
Subject: Re: [meteorite-list] Why not oil /diamond blades for cutting

Hi Dean and List,

It is crazy using alcohol in a saw that was not designed for it. You need a
very low speed saw (1-300RPM) with the motor isolated from the cutting
reservoir and fumes or else you are asking for a trip to the emergency room.
Alcohol also destroys the rubber seals that protect your bearings and
dissolves the grease in them causing premature saw failure.

Oil does no permanent damage to meteorites so long as it is filtered on a
regular basis. Literally every polishing operation I have seen uses
distilled water. Using tap water is being cheap as it introduces chlorine
into the meteorite creating long term reactions that break down the metal
component and a few other minerals. Oil acts as a temporary sealant during
the polishing operation preventing water from being absorbed into the
specimen. The polishing operation removes most of the oil. A pure ethyl
alcohol bath can be used to extract the rest of the oil trapped in the
specimen. A final treatment should be to slow dry the specimen in a
humidity free environment. We use a halogen lamp for this purpose. All
specimens should be polished immediately after cutting because it reduces
the surface area in which moisture can be trapped.

I hope this helps,

Adam Hupe
The Hupe Collection,
IMCA 2185

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Received on Sun 21 Mar 2004 01:16:40 AM PST

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