U-POL Weld #2 primer aerosol.
Ready to use copper weld through primer:
High adhesion, super-conductive Copper rich Weld Through Primer
Specially formulated to offer the best in rust protection for both SPOT, MIG and TIG welding.
Contains high purity Cooper giving excellent conductivity as well as high adhesion to metals.
Gives a durable, semi-flexible metallic finish, which leaves a corrosion resistant surface.