McMaster stocks Never-Seez in nickle only formulation, even "nuclear
grade". See
http://www.mcmaster.com/#never-seez-antiseize-lubricants/=e3634g
Grant KZ1W
On 9/15/2011 5:51 PM, Frank Davis wrote:
> I have been using a C3SS since Sept 2009. It was purchased used but in like
> new condition having been
> only erected for a short period when the first owner became a SK.
>
> This past summer I noticed that the SWR would jump around quite a bit during
> wind. Also I purchased an
> ACOM 1010 and when running that amp at 800w on 20M the SWR would skyrocket
> and the amp would shut down.
>
> Last week I lowered the tower and removed the antenna and discovered that all
> eight 2" hex aluminium studs that
> secure the fold wire for the 20M elements were very badly corroded. The SS
> bolts in the studs were quite loose
> and in a couple of cases I could pull the bolts out by hand. The studs were
> basically disintegrating due to galvanic action
> and no doubt the proximity to the ocean here did its job very well. A friend
> of mine made eight new studs for me out of 1/2"
> square AL stock and I have now reassembled the antenna and have it back in
> the air. I have pictures of the corroded studs
> if anyone is interested.
>
> I also discovered that the small wire strap that bridges the gap in the REF
> element was corroded in the automotive lug
> and literally fell out when I touched it.
>
> I contacted Mark at Force 12 and was advised that use of a "nickle" based
> anti-seize compound is highly recommended for these studs.
> That info is not currently in the manual for this antenna but Mark indicates
> it will added as a precaution to take during assembly.
> Only "nickle" based anti-seize should be used. Having said that "nickle "
> based anti-seize is not easy to find especially in small
> market areas and in small quantity containers. ! Copper and ceramic based
> anti-seize is fairly common but not good to use either
> of these - especially copper. I have not yet been able to find any here but
> have finally found a source for nickle based anti-seize "tape" that
> can be shipped to Canada. Will have to redo the threads when that tape
> arrives. Right now I have coated the bolts and threads and the
> complete assembled studs with spray on anti-corrosion grease that should hold
> for a while.
>
> I pass this info along in the event that other users may be experiencing
> erratic SWR readings on 20M. Check the studs holding the
> linear loading wires!
>
> 73 Frank VO1HP
>
>
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