[labnetwork] Anti-seize coatings for VCR threads

[Brian K. Olmsted]

Milk of Magnesia works incredibly well as a high temperature anti-seize.
The water evaporates at the higher temperature leaving a very good dry film
of colloidal magnesium hydroxide. It’s commonly used in engine applications
where regular anti-seize compounds will break down with prolonged exposure
to heat.

Brian K. Olmsted
Associate Director of Laboratory Operations
University of Minnesota | Minnesota Nano Center
www.mnc.umn.edu
612.626.3287
olms0025 at umn.edu


On Thu, Mar 13, 2025 at 06:57 Travis Wade <travis at evolvediamonds.com> wrote:

> Hi Dan,
>
> I've had good luck with Loctite 37617, silver-based antisieze.
>
>
> https://www.amazon.com/Loctite-37617-6PK-Silver-Grade-Anti-Seize-Lubricant/dp/B0053ZS1Z8?th=1
>
> I only use it on non-vacuum wetted surfaces, typically conflat flange
> bolts, so I cannot comment on outgassing, but I would have no aversion to
> applying it to a VCR thread.  The glue-stick style applicator is
> wonderfully convenient.
>
> Good luck!
>
> Travis Wade, Ph.D.
> Evolve Diamonds LLC
> Ph. +1 (978) 434-2283
>
>
> On Wed, Mar 12, 2025 at 3:45 PM Dan P. Woodie <daniel.woodie at princeton.edu>
> wrote:
>
>> Most Excellent Lab Network Community,
>>
>>
>>
>> We have parts for our ALD tool that returned from cleaning with the
>> silver anti-galling layer on the VCR nuts severely damaged. The concern is
>> that these are the heated lines that feed the ALD chamber and therefore,
>> after being tightened for 6+ months before the next cleaning, the heated
>> stainless-steel surfaces will seize up and we won’t be able to remove the
>> nut. Is anyone aware of an anti-seize coating or similar options that we
>> can apply to these threads to be able to use this damaged manifold? Given
>> that the VCR threads are not in the flow path, we are hoping to be able to
>> continue use the manifold, as it is quite expensive to replace.
>>
>>
>>
>> Thanks for any advice the community can share.
>>
>>
>>
>> Dan
>>
>>
>>
>> Daniel Woodie
>>
>> Director, Micro/Nano Fabrication Center, Princeton Materials Institute
>>
>> Princeton University
>>
>> 155 Andlinger Center
>>
>> 86 Olden St
>> <https://www.google.com/maps/search/86+Olden+St+Princeton,+NJ+08540?entry=gmail&source=g>
>>
>> Princeton, NJ 08540
>> <https://www.google.com/maps/search/86+Olden+St+Princeton,+NJ+08540?entry=gmail&source=g>
>>
>>
>>
>> (609)258-5922 (office)
>>
>> (607)227-2993 (cell)
>>
>> daniel.woodie at princeton.edu
>>
>> mnfc.princeton.edu
>>
>> www.linkedin.com/in/danielpwoodie
>>
>>
>>
>>
>>
>>
>>
>>
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