world gathers for metal finishing
Q&As since 1989
-----
Corrosion control for copper with benzotriazole
Can we use benzotriazole as additive in polymer of creating the copper protection film.
Vivek Virkarpacking material supplier - Mumbai, Maharastra, India
2003
Hi, Vivek. Sodium benzotriazole
[on
eBay or
Amazon]
is a well known preservative / corrosion inhibitor for copper and it has been added to some lacquer products like Incralac
[on
eBay or
Amazon]
or Permalac [adv: Permalac on
eBay]. So the general answer is yes, but whether it is compatible with your other materials is an open question. Good luck.
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
October 13, 2009
Copper Finish for Thermal transport
Q. My company currently finishes our copper heat spreaders with a nickel plating to prevent corrosion.
My colleague and I have been searching the net to determine if there would be a better finish for the copper.
We require a finish that would not inhibit the thermal transport properties of the copper heat spreader. Some have suggested a benzotriazole finish. Is this a better finish than the nickel plating? Does it add any significant thickness to the part?
Thanks in advance.
- Rancho Cucamonga, California, USA
July 7, 2014
A. Hi Cory. Benzotriazole is a temporary tarnish inhibitor. The thickness would be millionths of an inch. If the environment is benign it probably has a chance of working for a while, but its corrosion resistance in anything worse than a climate controlled room would probably be minimal. Good luck.
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
July 2014
Q, A, or Comment on THIS thread -or- Start a NEW Thread