[R-390] Tungsten Disulfide by the ounce......

[Bob Camp]

Hi

Same numbers on the 90 nm stuff:

If an ounce of 0.5 to 0.6 micron (500 to 600 nm) covers about 8 square meters, the same weight of this stuff would cover 52 square meters. 

Coming up with a surface that’s flat at the 90 nm level - hmmm…. The R-390 is a wonderful pice of work. I really doubt though that the parts are going to look very good at magnification into the 100 nm range. Unless you want to mirror polish the parts first, I’d skip the smaller stuff. 

Of course if you *do* want to do the polish job, it’s actually not quite as bad a price on a “area covered” basis. Be careful not to sneeze when you open the container …

If you just want to fool around with a true nano particle lube, the hex boron nitride  is the obvious one to get. It’s non-conductive and relatively safe to have around. 

Bob

On Jul 26, 2014, at 3:42 PM, Chris Farley via R-390 <r-390 at mailman.qth.net> wrote:

> The link provided earlier for the $54 1lb bag is for (presumably) the same stuff, they both claim .5 or .6 micron.  If you wanted the nano stuff, you're going to be spending a LOT more than that: 
> 
> 
> http://lowerfriction.com/product-page.php?categoryID=19
> 
> Chris
> 
> 
> 
> ________________________________
> From: rbethman <rbethman at comcast.net>
> To: r-390 at mailman.qth.net 
> Sent: Saturday, July 26, 2014 2:30 PM
> Subject: Re: [R-390] Tungsten Disulfide by the ounce......
> 
> 
> I just went to the link that Phil provided.
> 
> Reading the entirety of the specifications, it reveals that their 
> particular WS2 is NOT the nano particle in its size.  It is in the 
> micrometer range.
> 
> They even go so far as to essentially dissuade one from the nano 
> particle version.
> 
> It would then have a smaller spreading factor.
> 
> Although I don't think that besides safety aspects in handling that it 
> really makes a difference.
> 
> Bob - N0DGN
> 
> 
> 
> On 7/26/2014 3:22 PM, Bob Camp wrote:
>> Hi
>> 
>> Ok, so how much is that?
>> 
>> It’s roughly 4 cc’s of the stuff. You can coat about 8 square meters of surface one layer thick with that bottle. If you coat mating surfaces equally, it’s 4 square meters.
>> 
>> Given the way the material works, it’s likely not a “several layers” sort of coating. Allowing for surface roughness and a bit of slop might take you down to 2  square meters.
>> 
>> That’s a lot of playing with a pin oiler ….
>> 
>> A little bit goes a long way. Do not go crazy with this stuff.
>> 
>> Bob
>> 
>> On Jul 26, 2014, at 2:50 PM, Phil Mills <pmills7 at comcast.net> wrote:
>> 
>>> I found this site offering it for $11.95 per ounce.....
>>> 
>>> http://www.microlubrol.com/krytoxgpl205lubricantgrease-2oz57gmtube-4-3-3-1-1-2-3-1-3.aspx
>>> 
>>> Priority mail shipping is $6.20 and they take PayPal if you
>>> don't want to give them cc info.
>>> 
>>> I just ordered some because I have a Colt Commander that I have
>>> problems with keeping the slide lubricated enough.
>>> 
>>> Phil
> 
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