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Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ

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Copper plating over epoxy

Our company repairs printing presses. One of the repairs we are asked to do it repair a damaged cylinder. Usually this is caused by someone dropping something and 'dinging' the cylinder. I am looking for an epoxy type material to use to fill the 'ding' that can be filed and sanded level, then electroplated with copper. The copper is then plated with nickel, for a hard surface repair... any ideas or what to try?

Robert Rytlewski
Mid-Michigan Press Repair - Belding, Michigan

It is maybe vaguely possible that this could work if the cylinders saw exceptionally light duty, but it's not the right answer and I wouldn't bet on it. The right answer, which is used for shaft and mold repairs of all sorts, is to either electroweld nickel filler material into place (which takes an exceptional degree of skill), or to brush plate the items. Contact one of the suppliers of professional level brush plating equipment like Gold Touch [a finishing.com supporting advertiser] or Sifco.

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

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