[meteorite-list] WD-40

[mark ford]

Mark,

Interesting, you have to bear in mind though that WD-40 is a low cost
mass produced product, I doubt it gets 'dried', and is certainly not
Anhydrous. Bearing in mind it is essentially a natural volatile organic
solvent with a few additives, (c9-c11+)  i.e a petrochemical
(by)product, it will probably contain natural water (as does petroleum
in our cars and most other natural based fuels).

 To me the main problem with it is, WD-40 leaves a thin sticky residue,
and is only a very temporary protector, since it evaporates very
quickly.

There are far better oils/sprays around, such as gun oil, VCI's and
Lithium Grease (for Irons), all much more stable and well proven. 

I have stopped my Campos rusting successfully, by using a thin wipe of
Lithium Grease.

Best,
Mark Ford


-----Original Message-----
From: mafer at imagineopals.com [mailto:mafer at imagineopals.com] 
Sent: Thursday, June 02, 2005 3:23 PM
To: AL Mitterling
Cc: meteorite-list at meteoritecentral.com
Subject: Re: [meteorite-list] WD-40

This is interesting and I should address this with the makers then since
the MSDS states that WD-40 is made from naptha and hydrotreated heavy
mineral oil.

It may be the accessory ingredients which are "inert" which cause this
problem.

I'll get back to the list once I have an answer from the company. 
But, I like your gun oil idea also. But am worried about the smell. How
does it react with poly bags and the styrene type storage/display boxes?


Mark

On June 2, 4:59 pm AL Mitterling <almitt at kconline.com> wrote:
> Hi Mark and all,
>
> WD40 is basically kerosene but refined. We had discussions many years
> back about this oil for use on meteorites. What was determine back
> then if I remember right, was that some batches of WD40 were OK but
> others batches contained more water in it. People had both good luck
> and bad luck depending if they got a batch with water in it or not.
>
> If it is made from Kerosene then I can understand why it could
> contain water (every burn a kerosene heater? Humidity goes up!). I
> just know that some people who used it had rusting problems with it.
> I personally use Sheath gun oil as it displaces moisture very well.
> It smells terrible but seems to work good. Any oil used SHOULD NOT
> CONTAIN CHLORIDES as those will cause major rusting problems.
>
> Perhaps someone more knowledgeable than me can address this issue.
>
> --AL
>



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