[TowerTalk] PL-259's

[K8RI on TT]

On 6/21/2011 4:11 PM, Gene Fuller wrote:
> Any comments on packing PL-259''s with silicon grease to help keep water out ?

Silicone grease such as DC-4 or DC-5 compounds work well and do not dry 
out. HOWEVER one has to be careful when flooding connectors. Usually a 
good weather proofing on the connectors is all that is necessary to keep 
water out of the coax.  The down side to flooding connectors is the coax 
breathing through one end only.  Typically only do the connector at the 
top of the tower.  If both ends of a section of coax are flooded the 
internal pressure will change dramatically with temperature. It will be 
enough to force the air out past the grease/flooding compound, or suck 
in air. This will likely lead to condensation and can actually 
accelerate the deterioration of the coax.

73

Roger (K8RI)


> Gene / W2LU
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