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Copper Treating

The coating will not perform to specification if applied to a poorly prepared surface. Prior to coating, the surface must be prepared by removing contaminants such as dust, oil, dirt and fingerprints. Coating should be done with a minimal delay after cleaning to prevent re-contamination.

Suitable abrasives for treating copper include silicon carbide or stainless steel pads, and powdered pumice stone in a 5% oxalic solution. De-greasing may be performed using a solvent such as butyl glycol or trichloroethylene.

Using abrasives on the surface of copper may cause damage even while removing other blemishes. An automated inspection system provides verification of the success of surface treatment while ensuring any new blemishes are detected before coating.
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