[TowerTalk] SS galling revisited

[Patrick Greenlee]

John, The Marine Never-Seez I have has the ingredients you listed and 
more but NO COPPER. Back in our yachting phase when for 9 years we lived 
aboard our sloop "Pacific High" , home port of San Diego,  I used 
anti-seize products with copper and never had a problem.

My current NEVER-SEEZ is Bostic brand Mariner's Choice with listed 
ingredients of: Graphite, Calcium Fluoride, Zinc Oxide, and Aluminum.  
There are other ingredients not listed.  I bought this Mariner's Choice 
to get better rain protection  A N D  because I don't remember where my 
partially used up quart of copper containing anti-seize is currently 
residing. Not a senior moment but maybe a senior era.

Patrick NJ5G



On 5/10/2014 4:43 PM, Jon Pearl - W4ABC wrote:
> Hi Patrick,
>
> I'm on the Gulf coast of Florida and I'm surrounded on three sides by 
> salt water.  I use Bostik brand Never Sees 'Regular Grade' lubricant 
> http://www.bostik-us.com/sites/default/files/NSRegular.pdf on the SS 
> fasteners on my tower and antennas - specifically because it's noted 
> in their literature as being beneficial for use in salt water 
> environments.  I've only used the product for a couple of years now, 
> so as of yet, I don't have much of a track record with it.  Its major 
> ingredients are grease with graphite, copper flake, aluminum powder 
> and zinc oxide.  Does it contain some amount of Molybdenum disulfide?  
> It's not called out in this product's ingredients list, so I'm not 
> sure if trace amounts do exist.
>
> Of note: both the 'Blue Moly' 
> http://www.bostik-us.com/sites/default/files/NSBlueMoly.pdf and 'Black 
> Moly' http://www.bostik-us.com/sites/default/files/NSBlackMoly.pdf 
> lubricants contain Molybdenum disulfide.
>
> Along with the products listed above, there are also formulations for 
> Marine, High Temp Stainless, High Temp Stainless Nuclear Grade and a 
> few others at 
> http://www.bostik-us.com/market-products/product-assembly/mro/products/
>
>
>
>
> 73,
>
>
> Jon Pearl - W4ABC
> www.w4abc.com
>
>
>
>
>
>
> On 5/10/2014 10:09 AM, Patrick Greenlee wrote:
>> Had a chat with my mechanical engineering consultant (MS Mech Eng 
>> UCLA  and 35+ years of hands on experience.)  I mentioned how SS 
>> galling was a topic of interest to hams especially regarding towers. 
>> He gave me this tidbit of advice.  Do  N O T  use moly-disulfide 
>> based lubricants anywhere near salt or brackish water. This would be 
>> an issue for for coastal or near coastal hams.  What happens is that 
>> the chemistry of the lubricant in the presence of salt will LOCK the 
>> threads.  For this reason the Navy does not use Never-seez on subs 
>> (my friends specialty was a deep diving research sub, The Dolphin - 
>> 555), only the copper based anti-seize products.
>>
>> Patrick NJ5G
>> _______________________________________________
>>
>>
>>
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