Rainier 4a Copper Based Flux Coated Electrode

AWS A5.6 Class Ecu
DC Reverse Polarity (Electrode+)
High Purity Copper Electrode for Joining Copper and Overlaying Steel

Rainier 4A produces high purity copper weld deposits. Corrosion resistance and electrical conductivity are excellent. Perfect color match to copper.


Rainier 4A is a copper-cored flux-coated electrode used to surface, build-up, and fabricate electrolytic tough pitch and oxygen-free copper. Excellent for applications that require high corrosion resistance. Commonly used to overlay steel or to join heavier sections of copper to steel.

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