Contact Erico in Ohio (sorry don't have their city or tel #).
They sell the CADweld(TM) brand of exothermic welding
including "one shots."
For ham radio usage, however, unless you have access via
the commericial world or a ham club which wants to make a
group use purchase, you can do well enough with mechanical
manipulations. If you must use dissimilar metals, make sure
you put a "middle man" between them (e.g. stainless steel).
73,
Bob AA0CY
PS The way it works is that the "gunpowder" melts the dissimilar
metals together so that there is no discrete "interface" for electrolysis
to occur.
----------
From: Richard Spindler[SMTP:spindoc@digital.net]
Sent: Sunday, October 24, 1999 5:50 AM
To: TowerTalk Reflector
Subject: [TowerTalk] Exothermic Welding?
I am getting ready to install some ground rods for the tower.
The PolyPhaser literature and, I believe, the NFPA literature talks
about welding the ground wire to the rods with "exothermic welding."
It sounds a little like witchcraft starting with some aluminum oxide
powder and copper powder and an ignition powder with a form to put it
all in.
Anybody acquainted with exothermic welding?
Doc, N9AM
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