A propane torch will definitely not ignite these. It has to be a spark. If
you follow the instructions follow recommended safety procedures there really
isn't any reason to be worried about getting burned, etc. Also the Harger
Uni-shots don't throw the sparks and flame nearly as much as the Cadwelds tend
to do.
Chris
KF7P
On Nov 1, 2016, at 7:23 AM, William K Carr III wrote:
> I am about to embark on use of cadweld for bonding my ground wires to copper
> ground rods.
>
> Has anyone used a pencil tip propane torch to light the cadweld? It would
> offer a little more distance to protect knuckles, etc.
>
> Also, I have a K0XG rotating tower base. Richard recommends large diameter
> (in my case 4AWG) stranded welding cable to ground the tower (above the
> rotating base) to the ground rods. Has anyone used cadweld on stranded
> welding cable successfully? Or, just go with a bronze clamp?
>
> Your experience and/or suggestions are appreciated.
>
> Kim K5TU
>
>
>
> Sent from Samsung tablet
>
> -------- Original message --------
> From Larry Loen <lwloen@gmail.com>
> Date: 11/01/2016 00:22 (GMT-06:00)
> To Gary <gary_mayfield@hotmail.com>
> Cc towertalk@contesting.com
> Subject Re: [TowerTalk] Cad Welding tips
>
> I like that idea of an electric igniter. Wish I had had one.
>
> Even the gun made me a bit nervous. This stuff is really hot. You do not
> want it touching you during the "exciting" moment and it is always a pretty
> 'instant" (startling) moment when it ignites. If your hand is in the wrong
> place when it ignites, zero chance to escape undamaged.
>
>
> Larry WO7R
>
> On Mon, Oct 31, 2016 at 5:46 PM, Gary <gary_mayfield@hotmail.com> wrote:
>
>> One shots with a battery powered igniter.
>>
>> https://www.therfc.com/cadweldnew.htm
>>
>>
>> The RFC will rent you the igniter - works awesome. Standard disclaimer
>>
>>
>> 73,
>>
>> Joe kk0sd
>>
>> [http://www.therfc.com/Images/cadweldscan2.jpg]<https://www.
>> therfc.com/cadweldnew.htm>
>>
>> CADWELD Plus - The RF Connection Home Page<https://www.therfc.com/
>> cadweldnew.htm>
>> www.therfc.com
>> CADWELD Plus. The CADWELD ONE-SHOT unit consists of the ceramic mold which
>> contains the CADWELD WELD METAL, a metal disk, a flared sleeve or sleeves
>> and cover.
>>
>>
>>
>>
>>
>> ________________________________
>> From: TowerTalk <towertalk-bounces@contesting.com> on behalf of Bob K6UJ <
>> k6uj@pacbell.net>
>> Sent: Monday, October 31, 2016 7:36 PM
>> To: towertalk@contesting.com
>> Subject: Re: [TowerTalk] Cad Welding tips
>>
>> Larry,
>>
>> Thanks for the info. I will get the igniter gun too.
>> Safety first !
>>
>> Bob
>> K6UJ
>>
>> On 10/31/16 5:26 PM, Larry Loen wrote:
>>> You can get the one shots all over the web.
>>>
>>> This link: http://kf7p.com/KF7P/HargerUniShot.html
>> Harger® Uni-Shot - kf7p.com<http://kf7p.com/KF7P/HargerUniShot.html>
>> kf7p.com
>> What is it? Exothermic welding is a welding process for joining two
>> electrical conductors. it uses a superheated copper alloy to permanently
>> join to conductors ...
>>
>>
>>
>>>
>>> . . .includes various one-shots. Study carefully to find the exact right
>>> one, including the diameter of your ground rod. That, you can get a lot
>> of
>>> places. The real value is the little "igniter gun" farther down the
>> page.
>>>
>>> Scroll down until you find their igniter product that looks like a little
>>> gun. We had a lot of cadwelding to do and accidentally experimented. I
>>> tried a couple of other methods and frankly, as we discovered, they were
>>> dangerous. Some use ordinary sparklers to ignite these things and we had
>>> some singed knuckles when we tried that. Likewise, ordinary
>>> flint-and-steel of various sorts. Never again. Could have easily had
>> 3rd
>>> degree burns. This little "gun" version of it gets your hands just far
>>> enough away to be reasonably safe. Try and ignite it at an angle for
>>> further safety -- the stuff mostly goes straight up. But, you need a gap
>>> between you and the actual ignition.
>>>
>>>
>>> Larry WO7R
>>>
>>> On Mon, Oct 31, 2016 at 5:12 PM, Bob K6UJ <k6uj@pacbell.net> wrote:
>>>
>>>> I will be connecting no. 6 copper wire to 8 foot ground rods and plan to
>>>> bury the
>>>> connections. I did my homework reading Tower Talk archives and have
>>>> concluded
>>>> that I will cad weld the connections. I am a newbie at Cad Welding any
>>>> advice, and where is the best place to get cad welding supplies ?
>>>>
>>>>
>>>> Bob
>>>> K6UJ
>>>> _______________________________________________
>>>>
>>>>
>>>>
>>>> _______________________________________________
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>> TowerTalk Info Page - Contesting<http://lists.contesting.com/mailman/
>> listinfo/towertalk>
>> lists.contesting.com
>> TowerTalk is for discussion of tower and HF antenna construction topics.
>> TT members have lots of helpful information and are happy to share it.
>>
>>
>>
>>>>
>>> _______________________________________________
>>>
>>>
>>>
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>> TowerTalk Info Page - Contesting<http://lists.contesting.com/mailman/
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>> lists.contesting.com
>> TowerTalk is for discussion of tower and HF antenna construction topics.
>> TT members have lots of helpful information and are happy to share it.
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>>
>>
>>>
>>
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>>
>>
>>
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>> lists.contesting.com
>> TowerTalk is for discussion of tower and HF antenna construction topics.
>> TT members have lots of helpful information and are happy to share it.
>>
>>
>>
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