[meteorite-list] WD-40

[mafer at imagineopals.com]

Hello Nicholas and list

Here is the email I got back from the people who make it.
____________________________________________________
Dear Mark,

WD-40 does not contain any water.

Best regards,

Eva Zabowski
Consumer Relations
WD-40 Company
__________________________________________________
Now, this isn't an endorsment to use it, or to negate anything already
said. Its just what the maker says.

Which kinda re-enforces the MSDS on the product.

As far as evaporation goes, well, thats a known from deck treatments which
contain parafins (mineral oils) which evaporate in about 18 months
according to the US Forestry Department (I attended a seminar years ago).

So, its also safe to think that opther products may have limited lifespans
if they contain any parafins as well. 


Got some good info going here folks!
I'm happy with the results and will munch on some chocolate cookies as I
digest the info, thanks


Mark Ferguson

On June 2, 6:41 pm Nicholas Gessler <gessler at ucla.edu> wrote:
> Some old memories of WD-40 from my museum conservation days.
> But you had better check these out with from source:
>
> It is made from fish oil.
> It contains a lacquer, which remains after the oils depart, which
> might be helpful for meteorite preservation but
> which "gums up" fine lubricating jobs like clocks and watches.
>
> Of course, any moisture that does creep in underneath a lacquer will
> find a most hospitable
> environment for rust.
>
> It shouldn't be too difficult to build an acrylic or plexi enclosure
> from which air might be
> purged and replaced by inert nitrogen.  Nylon fittings are available
> at most hardware stores.
>
> Cheers,
> Nick
>
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