When I worked in various labs we kept those materials as well as epoxies in
a refrigerator. I cant recollect any going bad and we got full use out of
the containers.
Carl
KM1H
----- Original Message -----
From: "Roger (K8RI)" <sub1@rogerhalstead.com>
To: "Carl" <km1h@jeremy.mv.com>
Cc: "david feldman" <wb0gaz@hotmail.com>; <amps@contesting.com>
Sent: Tuesday, June 24, 2008 4:22 PM
Subject: Re: [Amps] Creating chimneys from silicone sheet
> Carl wrote:
>> I would think that the ONLY reason some hams would use something else is
>> the cost. Ive even seen a few "thrifty" individuals use radiator hose
>> complete with hose clamps!
>>
>
> I'd want to be careful there. A lot of radiator hoses have metal
> reinforcement between layers. Some of the older stuff just used a coiled
> spring inside which would be easy to remove. Also the material in the hose
> may or may not be conductive. I've seen both, but where there's a will
> there's a way although some "ways" don't work as well as others<:-))
>
> As for the sealant, I just use plain old "Bathtub Calk". Unless something
> goes wrong it should have way more temperature handling capability than
> what's needed.
>
> Before retirement I used to get the Red, high temp Silicone rubber
> material as well as the red, high temp Silastic RTV (TM) made by Dow
> Corning for pennies on the dollar.
>
> Which reminds me, if I didn't post it on here ... Making RTVs and Liquid
> Electrical tape last...I'll put it in a different thread as well.
> Both the RTVs and Liquid Electrical tape are known for short life after
> opening. The RTVs have a relatively short shelf life even when not opened.
> I've found that putting the Liquid electrical Tape cans into a small fruit
> jar (Mason Jar) extends the life of the material almost indefinitely.
> I keep the tubes of Silastic RTV (TM) calk in either Tupper ware
> containers or bran-X. I have both opened and unopened tubes that I
> purchased before retiring (in 96) that are still good. The squeeze tubes
> must breathe at least a little as the smell of acetic acid is very strong
> when the top is taken off the plastic container even when the tubes within
> have have never been opened.
>
> 73
>
> Roger (K8RI)
>
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