CADWELD Welding Material

CADWELD welding material consists of copper oxide and aluminum, packaged
by weight (in grams) in plastic tubes.
Each tube contains starting material at the bottom of the plastic tube.
Welding material is packaged in containers along with metal disks.
Standard welding material (F20) is packaged in tubes with clear caps and
is used for all grounding connections with the exception of those to cast iron
or rail.