[TowerTalk] Safe Sealers with Coax through Nylon bushings

Patrick Greenlee patrick_g at windstream.net
Sun Jul 15 13:29:38 EDT 2018

We get scorpions too, by the bunches. I was filing a quart jar with dead 
ones from inside our sun porch and house but my wife declared them gross 
and put them in the trash.

CYPERMETHRIN a close cousin of permethrin which is used to treat the 
cloth that BDUs (fatigues, cammies) are made from.

Cypermethrin is    T  H  E   chemical of choice for Scorpions. In the 
house, scorpions hunt at night mostly and hide out in the daylight.  
Under the baseboards of walls is a favorite hide out during the day (and 
other places as you mentioned.)

I get cypermethrin as a wetable powder and apply it with a pump-up 
sprayer.  I shoot it under the baseboards and across thresholds/under 
doors.  Scorpions come in and then when it gets light they hide under 
the baseboards in the cypermethrin.  We rarely see a healthy looking 
scorpion.  We find dead ones and sluggish dying ones.  It kills other 
bugs too, including spiders which are prey/food for the scorpions.

Cypermethrin wetable powder in water has no bad smell, lasts a very long 
time under the baseboards.  I don't know if there is a half life for the 
treatrment as our scorpions are dying and the treatment was done years ago.

Various indoor and outdoor enclosures  can end up as hotels for bugs.  
Spray with Cypermethrin and no more bugs.  When dry no volatility, the 
powder just waits patiently for bugs to get some on them.

Patrick        NJ5G

On 7/15/2018 12:07 PM, Mike & Becca Krzystyniak wrote:
> Greetings Towertalk Sages...
>      I just dropped a half dozen coax runs from the shack, through the attic into a chase in a covered walkway, out to the outside back wall of the detached garage where the antenna grounding box/panel is located.
>      The coax drops through the ceiling drywall via simple drywall nylon cable bushings (not the gland type).
>      Future proofing I oversized the bushing so I could upsize to the next larger cable if I wanted too.
>      But that leaves a proportionally sized gap.
>      Around here we have those little critters we affectionately call scorpions.
>      They fit through some of the smallest cracks.
>      I was thinking about some expanding foam on the top side of the drywall, or maybe some type of caulking or ???
>      My question is, as I have a mix of Times LMR-400 and LMR-600, and 600UF, are all these sealing products safe to use with these types of coax?
>      I'm worried about the chemicals in the sealant or reactions from the foaming compromising or attacking the jacket, or worse.
>      Anyone have knowledge on this?  Or good/bad experiences??
> Thanks in advance.
> 73's  Mike K9MK
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