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Ted Mooney, P.E. RET
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Eductors and Acid Copper Pitting
Have eductors lessened the amount of pitting in acid copper plating solutions?
Ron RobinsonPlating chemical supplier - Fort Wayne Indiana US
December 16, 2010
Hi, Ron.
It sounds like you are asking us to call an eductor salesperson a liar :-)
Agitation is very valuable in acid copper plating, and eductors can be a good method to impart that agitation. Please try to post your actual situation. Thanks!
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
December 20, 2010
Eductors are an excellent addition to many plating tanks, but they are not completely idiot proof in their employment.
James Watts- Navarre, Florida
December 23, 2010
Eductors are good but certainly not a must for acidic copper.
Pitting is rarely a problem in acidic copper. Good housekeeping keeps the pitting away.
Mostly pitting in acidic copper is a result of poor filtering.
If you are facing pitting problem, filter 1 liter in lab with a good filter paper (not more than 1 micron) and take a good look at the paper. If there are particles on it, its a proof that the filtration needs improvement
Sara Michaeli
Tel-Aviv-Yafo, Israel
December 30, 2010
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