Summary for polypropylene anode bag Discussion
polypropylene anode bag is the key search here, but the thread raises a bigger question: whether a bag is needed at all for a platinum anode in iridium electroplating at 85 °C. Omar Alshehri asked where to buy 0.5 mm polypropylene cloth bags for a small platinum mesh anode. In reply, the answerer noted that anode bags are normally used to trap fines from dissolving anodes so they do not contaminate the workpiece, and said that purpose does not seem to fit a non-consumable platinum anode. Still, the answerer suggested checking with Technic for anode bags, or contacting a plating process distributor in a nearby large city, since such distributors should carry them. The practical takeaway is that the bag may be unnecessary for this application, but suppliers can likely be found through plating-industry distributors.
Q. Good day every one
We are going to do iridium electroplating that needs a 0.5 mm thick polypropylene cloth bag for a platinum anode.
The plating temperature is 85 °C. The anode, as mentioned, is a platinum net (or mesh) where its dimensions are 2 cm x 2 cm with a thickness of about 10 microns.
Could you kindly tell me what are the companies that sell polypropylene cloth bags (0.5 mm thick)?
Thank you.
Omar Alshehri
Graduate Student – Waterloo, Ontario, Canada
January 10, 2011
A. Hi, Omar.
As I understand it, the purpose of anode bags
⇦ huh? is to contain any fines from the dissolution of the anode so they do not deposit on the work piece. So I am not actually understanding why you need anode bags for what sounds like a non-consumable anode.
But you may be able to get anode bags from Technic. If not, find a plating process distributor in a nearby large city; all plating process distributors will have anode bags. Good luck.
Regards,
Ted Mooney, P.E.
Striving to live Aloha
finishing.com – Pine Beach, New Jersey
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