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Clean the Oils or buffing compound first for chrome plating?



2002

In nickel/chrome plating lines we are understanding that buffing compounds are typically addressed with low alkalinity, mechanically agitated, saponifying cleaners at high temperatures (180-195 F); and oils are typically processed with strongly alkaline soak cleaners at 140-180 F.

The debate has been concerning parts that have oiled surfaces (typically ID areas) as well as buffed surfaces --- which contaminant should be address first? Of course precleaning oils prior to buffing is preferred, but this is not an option due to production demands.

When oil removal is approached first, are problems commonly encountered with the compounds that have set-up? When buffed compounds are addressed first, do the oils foul the compound removing solution for future part cleaning?

Any suggested approaches from experience?

Estaban Pardo
- Cleveland, Ohio


2002

Hello, Estaban.

You're on the right track: you have to get the buffing compound off before you remove the oil that keeps it soft. If it fits your other needs, a power washer, or at least an ultrasonic cleaner, should precede electrocleaning. Good luck.

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E.
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finishing.com - Pine Beach, New Jersey

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