![pub](/gifs/pub.png)
Metal finishing Q&As since 1989
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ACID ACTIVATION
IS 5-7% sulfurIC ACID RINSE REQUIRED AFTER WATTS NICKEL BATH AND ACID COPPER BATH . WE ARE UNDER IMPRESSION THAT BRIGHTENERS STICKING ON TO THE JOB DECOMPOSE IN THIS ACID AND SALTS WILL DISSOLVE IN THIS 5-7% sulfurIC ACID, COMMENTS IN THIS ISSUE (SUBJECT) IS APPRECIATED.
![Panjala Mukesh](../portraits/panjala_mukesh.jpg)
Panjala Mukesh
fashion jewelry mfgr.
Hyderabad, India
2002
Panjala Mukesh,
I do not think you need 5-7 % sulfuric acid concentration after watts nickel bath. You need 4.5 to 5.0 ph for this rinse tank at sorter time rinse.
![popat patel](../portraits/popat_patel.jpg)
Popatbhai B. Patel
electroplating consultant - Roseville, Michigan
2002
Why should we have an acid rinse?
![Panjala Mukesh](../portraits/panjala_mukesh.jpg)
Panjala Mukesh
fashion jewelry mfgr.
Hyderabad, India
2002
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