[Elecraft] Loctite

Tue Jan 13 16:54:05 2004

LocTite is an anaerobic adhesive.  It only really sets well where there is 
little or no oxygen, i.e. the very tiny gaps between screw and nut threads.  
As a "drop lock", it does not work well at all. When we need to "cement" 
trimmer caps or variable resistors in place on circuit boards for electronic 
strobes, we use nail polish (laquer).  It's not too terribly bad to remove 
should you ever have to in the future.

Basically, there are three kinds of LocTite.  Blue for when you have to be 
able to remove something later as Rick has stated.  There is also red which 
you will be extremely lucky if you are ever able to remove that device 
without damaging it; and then there is green LocTite which is a medium 
strength.  It can be removed using heat from a heat gun or hair dryer to 
loosen it's hold on whatever fastener you are using.

73 de Larry W2LJ

--
[email protected]
> A word of warning to anyone who uses Loctite (tm).  My experience in auto
> mechanics has tought me  to use BLUE loctite on the threads of something you
> may need to remove (service).  NEVER use RED loctite on the threads of
> something you ever want to remove (never overestimate your desire to "never"
> want to remove something).  I can not speak to using RED loctite it as a "drop
> lock" on trimmer caps or resistors or how it compares with using superglue in
> similar situations.
> 
> dt
> .
> 
> 
> --- Rick Hampton <[email protected]> wrote:
> > Hi, Tom.
> > 
> > You're not alone.  I had the same problem.
> > 
> > I also had problems with the plug not screwing into it's threaded hole.  If
> > the USPS has done it's job, the guys at Elecraft are looking at it now.  When
> > I get the bracket back, I'll probably use some Loctite on it instead of the
> > lock washers, if I even need that.
> > 
> > 73,
> > Rick, WD8KEL
> > KX1 #358
> > 
> > tomcarolbrown wrote:
> > 
> > > Hi All,
> > > Last Saturday I received my KXPD1 paddles in the mail and proceeded to
> > assemble them. Very easy 20 or so minute job. I did experience one slight
> > problem when attaching one of the paddle halves to the aluminum machined
> > part. One of the 4-40 screws didn't grab the threads strong enough to
> > compress the split lock washer thus stripping the top part of the threads. My
> > solution was to leave the washers off inorder to have enough thread to hold
> > that paddle half tightly. I wonder if a better design would be to use through
> > screws with lock washers and nuts? That might save some cost for threading
> > the machined aluminum block. The looks might suffer in that you'd see a nut
> > instead of a screw top but maybe a painted nut or nut plate would solve that.
> > >
> > > 73, Tom W0MFQ
> > > KX1 # 307
> > 
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