
plating, anodizing, & finishing Q&As since 1989
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Use of copper sulfate to protect metal
October 27, 2008
We inspect and repair oilfield tools i.e. threaded steel connections. I heard that after performing grinding to repair threads and shoulders of the oilfield connections (pin and box), we should apply copper sulfate to the ground area. Can you explain the benefits and is it really worth it. The use a pipe dope to grease the connection prior to mating.
Sean LavergneIndustrial Services - Willis, Texas
November 14, 2008
I rather doubt that you are using copper sulfate on oil well parts. It will promote rusting. You might be using a fine metallic copper based anti seize material or possibly copper plating.
James Watts- Navarre, Florida
November 27, 2008
Welding wire is frequently coated with a very fine layer of copper deposited by immersion in copper sulfate acid solutions to delay oxidation from air. It is not intended for top resistance, long durability or tough environments.
Guillermo MarrufoMonterrey, NL, Mexico
