ERICO CADWELD Exothermic Welding - Manual (Page 24)

Fig. 11
The conductors should be clean and dry before the
connection is made. Use a propane torch to dry wire
conductors and remove remaining cleaning residue,
solvent, or water before making the CADWELD ®
connection.
Fig. 12
Next, use a wire brush to further prepare the surface
of the conductors and ground rod (CADWELD T-313
or T-314 brush). Scrape the outer surface to remove
dirt and oxidation. You will notice a slight color
change.
Fig. 13
Weld metal package (includes welding material, discs,
filters and ignitors for 4 connections).
22
The CADWELD
®
EXOLON Process