This stuff works well. I've never had an issue on a part liberally coated
with this:
http://www.permatex.com/products/Automotive/lubricants/specialty_lubricants/Permatex_Anti-Seize_Lubricant_a.htm
As you may know, aluminum to stainless connections are galvanic and will
deteriorate. Ultra Tef-Gel is a great product that provides galvanic
isolation of parts, including the threads of self-tapping or machine screws
with dissimilar metals.
Mickey N4MB
On Thu, Jun 24, 2010 at 9:43 AM, Jim Thomson <jim.thom@telus.net> wrote:
> This stuff comes in 8 oz containers [and also larger] The stuff available
> from my local
> fastener place is made by locktite. It's used on SS threads so they don't
> gall, etc.
>
> It comes in two grades.. standard 'silver'.. and 'marine grade'. I see DX
> eng also sells
> this goop... and also in both grades. The only diff i can see between the
> 2 x types
> [besides price] is the marine grade stuff is rated for a higher temp.
> [1800 deg f vs 1600 deg f]
>
> The guy tells me the marine grade stuff has a higher temp rating cuz it's
> used on engine parts
> in marine applications. [ I can't see any engine getting this hot, even a
> turbo].
> No mention of the marine grade being better suited for wet environments.
>
> I'm going to use it for outside ant stuff... like dx eng SS U clamps, etc,
> etc. So other than being
> in the rain, the temp is not an issue.
>
> I bought the regular grade. Did I buy the wrong stuff ? On a similar
> note, today, 3 of us took down
> my trylon tower [to be replaced with a crank up] ... and I had replaced 4
> of the leg splice bolts with
> longer 1/2" diam SS bolts... and had not used any anti seize on em. I
> required longer bolts since I had
> mounted small al plates on one tower face.. to side mount a 15m yagi..
> fixed due east.
>
> Of course one of the 4 x SS bolts gauled.. and flat out would not come out!
> Fortunately, we had mounted the
> nuts on the outside of the tower legs. We had to use the sawzall to come
> the damn thing off !
>
> I have made up 8 x new boom to mast plates from 3/8" thick al plate....
> F-12 style.. with one vert plate
> on the mast.. and one horz plate on the boom.[ 4 x ants in total] 5 x
> 1/2" diam SS bolts mate the 2 x plates together.
> I can just envision just 1 of 20 x SS bolts gauling.. and a gong show
> ensuing, trying to cut em off.
> How reliable is this anti-seize /never seize stuff.. esp after several yrs
> ?? I think if I was to ever remove any of the
> SS nuts, i would slop some more anti seize goop on the exposed, excess
> threads.. just prior to removal.
>
> I only had gauling problems just once b4.. and that was when using SS
> nylock nuts on SS bolts. In that case, the
> SS nylock was being tightened for the 1st time.. and the nut seized up..
> with a 1/8" left to go ! Would not loosen
> and would not tighten. I cranked on it with a breaker bar.. and sheared
> off the SS bolt. [these were 3/8" bolts]
> I had that happen 3 x times.... and the gauling problem was only when SS
> nylocks were being used..... until
> today's incident [ no nylocks, just SS flatwashers and SS split ring lock
> washers]
>
> Of course, I had not put any goop on the 3/8" bolts nor SS nylocks either.
> I just discovered the goop a few months back.
>
> Funny thing is.. I use SS machine screws all the time on HB amps... [ like
> 10-32 1/4-20, 8-32 6-32 etc] and have never had a
> gauling problem with em in the last 20 yrs. The gauling problem only
> seems to happen with 3/8" and bigger.. and esp when
> SS nylocks are employed. BTW... just bought a ton of dx eng SS saddle
> clamps [ SS u bolts with solid AL saddles] to use on the
> el to plate connections for each el on the yagis. All my F-12 ones had
> rusted. In some cases, it was just the nuts.. some times jut one thread
> on one side of a U bolt..some times both. I was getting fed up with rusted
> hardware... and have not found a source for galvanized
> u bolts..yet.
>
> I hope this anti seize/never seize goop actually works. Trying to cut
> rusted /gauled hardware..up a tower is no fun.
>
> Later..... Jim VE7RF
> _______________________________________________
>
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>
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--
Mickey Baker
Fort Lauderdale, FL
“Tell me, and I will listen. Show me, and I will understand. Involve me, and
I will learn.” Teton Lakota, American Indian Saying.
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