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Metal finishing Q&As since 1989

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Anti-seize

Dear Sir:

My question pertains to basics of anti-seize. We have been using graphite based antiseize for a while in tightening nuts and bolts in our die-shop, but a suggestion was based to go to copper or nickel based anti-seize [on eBay or Amazon]. My question is on what principle does copper or nickel based anti-seize work and what are their benefits over graphite.

P. Shah
- Rockford, Illinois, USA

I'm not especially familiar with either of them, but if the job can afford it, silver plating is the "classic" anti-seize. It's better than graphite for at least two reasons: first, it's permanent, it doesn't rub off; second, there are some environments where graphite is a no-no because of the loose "particles" in the atmosphere and the possibility of contamination or electrical shorts they can cause.

Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey

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