[TowerTalk] Fwd: Fwd: sealing PL259's

[Hans Hammarquist via TowerTalk]

Thomas,


I have no idea what it contains only that it you don't put it on, the fitting will leak no matter how hard you tighten it. (My brother-in-law had that experience.)


A limited amount on the threaded part shouldn't interfere with the "electrical' part. It should have some sort of sealing function. (I still missing some "spring" function of the PL-256 to ensure a proper outer connection. Maybe that could be an improved PL-256 (PL-256-S :). Some type of built -in weather seal would also not hurt.)


Hans - N2JFS



-----Original Message-----
From: Thomas Noel <tnoel at mac.com>
To: Hans Hammarquist <hanslg at aol.com>
Cc: towertalk <towertalk at contesting.com>
Sent: Tue, May 26, 2015 2:31 pm
Subject: Re: [TowerTalk]  Fwd:  sealing PL259's


Hans, 
  
 
 
Both pipe dope and teflon tape are primarily lubricants to enable tightening the fittings enough to achieve a seal. The thread dope is a mix of lubricant grease and microscopic metallic particles to help prevent galling. I would be concerned about putting a conductive grease in a fitting that needs two distinct conductors. 
 
  
  
         
      
Thomas W Noel      
      
KF7RSF      
     
   
   
  
   
    
On May 26, 2015, at 10:25 AM, Hans Hammarquist via TowerTalk <     towertalk at contesting.com> wrote:    
    
    
     Hi Jim,     
     
     
     I was thinking about the "gray" thread sealer that doesn't harden. It would also be out of the UV-radiation being inside the threads. Should be no problem, more than cleaning the gook off.     
     
     
     I don't like to "tighten with pliers" when you have a knurled surface on the nut (or screw for that matter). It's needed for the UHF connector but not on the N (or TNC) for a proper connection.