Sound technical content, curated with aloha by
Ted Mooney, P.E. RET
Pine Beach, NJ
The authoritative public forum
for Metal Finishing since 1989
-----
Acid copper plating bath is contaminated with nickel
December 14, 2010
our shop is doing plating on plastic
the line sequence is:
etching , catalyzer, accelerator, chemical nickel, acidic copper.
we did an analysis for nickel in the acid copper bath with atomic absorption
⇦this on
eBay
or
Amazon [affil links] .
the results were:
Tank 1: 450 mg/l
Tank 2: 448 mg/l
Do you have any idea about the results. If the result is okay or not?
plating on plastic - Istanbul, Turkey
December 16, 2010
Hi Arda,
Electrolytic acid copper bath has a Fe plus Ni tolerance around 1000 ppm. Too high will reduce Cu ductility and affect deposit appearance (e.g. pitting).
You may prolong rinse between EN and acid Cu or insert acid predip prior copper plating.
Best regards,
David
David Shiu
- Singapore
(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)
Q, A, or Comment on THIS thread -or- Start a NEW Thread
Q, A, or Comment on THIS thread -or- Start a NEW Thread