[TowerTalk] FW: PL-259 Electrical Joint Compound

[maflukey at gmail.com]

Silicone (pure) dielectric grease works fine for connectors.   PVC-IIA (non-contaminating) or PE-III jackets both hold up pretty good in Texas.   Flooded cable never hurts but be sure the center conductor is made to flex without fatigue.   Some PE can be pretty stiff.  Just one of may opinions you will receive... 😊

73
Matt
KM5VI



-----Original Message-----
From: TowerTalk <towertalk-bounces at contesting.com> On Behalf Of Paul Christensen
Sent: Monday, December 4, 2023 7:02 AM
To: towertalk at contesting.com
Subject: [TowerTalk] PL-259 Electrical Joint Compound

After 15 years, a pair of PL-259 connectors have seized on mating SO-239 jacks used on an outdoor RF choke. Is there anything more suitable than Penatrox-A which is Au/Cu rated?  Ideally, I'd like to apply a synthetic + conductive grease on the mating SO-239 threads.

 

Unrelated, but while investigating the coax connectors, the LMR400-Ultraflex cable I installed about 15 years ago has started to decompose.  At the time of installation, I knew the Ultraflex version has a shorter life span but wasn't expecting such severe decomposition.  The jacket is crumbling due to its rubber composition.  This past weekend, I replaced it with gelled LMR400-DB for direct burial, but it's installed above ground.  Like the original LMR400, the DB version has a rugged polyethylene (PE) jacket.  

 

Paul, W9AC    

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