[TowerTalk] Info/Advice re: Exothermic Welds

[Jim Hoge]

Art,

Cadweld is one product, made by Erico. Thermoweld is another. Erico calls their single use products Oneshot and yes, the ceramic mold can remain after the fact. One shots are cheaper up front because you are not buying the molds and the handles. A different mold is required for each different application, ie: one wire #4  to ground rod, 2 wire to rod, a #2 wire to ground, etc. I know Thermoweld makes products for flat strap to rod or plate. One note on the Cadweld Oneshots- the wire openings on the molds are a bit oversized and weld material can run out. If you wrap the mold with electrician's putty, it will remain in place long enough to prevent the runout. The thermite weld mix lights very easily with a flint igniter. I was surprised the first time I used it. 


73,
Jim W5QM



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