[TowerTalk] RTV Sealant / vapor wrap

[K7LXC at aol.com]

In a message dated 2/5/2008 4:51:47 P.M. Pacific Standard Time,  
towertalk-request at contesting.com writes:

>  Steve,  Is the butyl rubber vapor wrap the same as  Scotch rubber mastic 
tape 
(2228), which is available at the big box  stores?  I have been wrapping 
joints 
in two layers of reversed Scotch  88/33 (sticky side up), then overlapping 
with 
the rubber mastic tape,  protected with another double layer of 88 or 33.  I 
only have about 5  years experience with the mastic, but connectors that I 
recently exposed  looked like new.


         That's a James Dandy  way to do it and highly recommended. 
 
        As far as the mastic tape,  there are many varieties of butyl rubber 
and other materials such as mastic.  There's also a product for plumbers and 
one for florist shops. 3M probably makes  a dozen or more rubber products with 
different voltage and temp ratings, etc. so  it probably doesn't make much 
difference which one you use. Just make sure you  use your tape-vapor wrap-tape 
scenario and you're good to go.
 
Cheers,
Steve    K7LXC
TOWER TECH -
Professional tower services for hams
Cell: 206-890-4188



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