Greetings,
Here is a thread that WD40 was talked about in the past. You can use
this date to go back and view all the comments. Apparently there was a
prior thread on the same subject even further back.
--AL Mitterling
Re: [meteorite-list] WD-40
Eric Twelker
Thu, 02 Jun 2005 21:49:26 -0700
Hello List
Possibly one of the sources of the idea that WD-40 contains water is my
preservation page. The reason I wrote this was personal experience. When I
was starting out in the business, I bought a gallon can of WD-40 at the
hardware store. I poured it into a glass container to treat some
meteorites. In the bottom, sitting in an immiscible layer was something
that sure looked like water to me. I didn't analyzed the layer, but when I
heard that WD-40 contained water, I was convinced.
Regards,
Eric Twelker
http://www.meteoritemarket.com
Hi Mark,
Did they sum it up in 6 words?? I would like to know why it doesn't
contain water. If they have tanks that sit empty for any length of time
there is bound to be some moisture from that alone. While it may be true
it contains very little moisture (so the customer relations can state it
doesn't have water as they want you to use their product) it still may
contain enough to do damage to something susceptible to oxidation (like
meteorites).
To say it has no moisture in it at all, well I have a hard time
believing that from them. Sometimes you have to really define terms and
break apart information to get to the truth of the matter. A few well
chosen words on their part really bother me.
--AL
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Quoting Meteorites USA <e...@meteoritesusa.com>:
The formula for WD40 is secret. however...
"...WD-40 literally stands for Water Displacement, 40th attempt..."
http://www.wd40.com/faqs/
WD40 does not contain water... ;)Wouldn't it seem counter intuitive
to add water to a product which displaces water?
Wired Science article about the ingredients of WD40:
http://www.wired.com/science/discoveries/magazine/17-05/st_whatsinside
"...What does WD-40 contain? - While the ingredients in WD-40 are
secret, we can tell you what WD-40 does NOT contain. WD-40 does not
contain silicone, kerosene, *water*, wax, graphite,
chlorofluorocarbons (CFCs), or any known cancer-causing agents..."
http://www.wd40.com/faqs/
Nantan has a bad rep for rusting, however, usually only the outer
surface of the irons are rusted. Smaller irons rust deeper into the
interior of the metal in relation to it's size. The level of
oxidation depends on the size of the specimen and partly on "where"
within any given specimen the slice is cut from. The treatment and
prep work on a finished piece of etched Nantan also plays a large
part in whether it rusts or not.
Regards,
Eric
On 12/6/2010 10:11 AM, Gary Fujihara wrote:
I wouldn't use WD40 on any mets, as it contains water and smells.
Like Al mentioned, a good low viscosity gun oil like Remington
Rem-Oil wipes work well without any aroma. As an added bonus the
application wipes clean mets while lubricating them.
Also, as Matt mentioned, there are problem and stable specimens from
most any iron or pallasite meteorite. Another factor is how they
were prepared. And its not just irons and pallasites, as I've had
Ghubaras and Tsarevs that self destruct by themselves.
gary
On Dec 6, 2010, at 8:00 AM, al mitt wrote:
Hi Ed and all,
This has been discussed before and I believe the consensus was that
WD40 can have moisture in it that will promote rust. It depends on
the batch but there is varying degrees of water contained in this
lubricant. It might not be so good for Nantans but more stable
irons like Gibeon would probably be fine.
A good grade gun oil like Birchwood brand, Barricade seems to do
better in my experience but smells a bit. Bottom line here, Nantans
are often unstable and may have been weathered to the point you'll
never be very successful at drying them out. These are notorious
rusters.
I like very much your idea of a list of meteorites that are
problems specimens. Perhaps we could develop a rating system (1 to
10), (stable, mostly stable, partly stable, unstable, extremely
unstable) or something similar and a listing of specimens. Even the
metal in ordinary chondrites can rust. An example is Ghubara, Omen.
About half of the pallasites out there are problem specimens, and a
number of irons are.
Best!
--AL Mitterling
----- Original Message ----- From: "Ed Majden"<epmaj...@shaw.ca>
To:<meteorite-list@meteoritecentral.com>
Sent: Monday, December 06, 2010 12:28 PM
Subject: [meteorite-list] List of known Rusters?
Does anyone have a list of known Iron meteorite rusters? The
sample of Nantan China I have split into several pieces. I have
been using WD40 on the pieces to retard further problems but this
does not work all that well. Have to repeat this every few weeks!
Ed Majden
Courtenay B.C.
Asteroid Majden 142368 (Thanks to Rob Matson)
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Gary Fujihara
Big Kahuna Meteorites (IMCA#1693)
105 Puhili Place, Hilo, Hawai'i 96720
http://bigkahuna-meteorites.com/
http://shop.ebay.com/fujmon/m.html
(808) 640-9161
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