netneut
finishing.com -- The Home Page of the Finishing Industry
A website for Serious Education, promoting Aloha,
& the most FUN smiley you can have in metal finishing


Finishing.com has been free for 22 years,
but without net neutrality we could soon
cease to exist. Do us a solid, click on
the banner, and contact congress today!
HomeFAQsBooksHelpWantedAdvertiseForum
topic 12205

Electropolishing formulations


 

Well we are an acid copper plating unit doing job work & on the lookout for electropolishing of SS for small complicated shape items that don't yield to mech. polishing. Kindly suggest to me a suitable low cost bath at room temperature.Your kind advice is eagerly awaited.

N. ARUN
- Trichy, India


 

The Electroplating Engineering Handbook has all sorts of formulations for you, with some of their advantages and disadvantages. Just stay away from perchloric acid.

Ted Mooney, finishing.com Teds signature
Ted Mooney, P.E. RET
finishing.com
Pine Beach, New Jersey


 

You are unlikely to find a room temperature, low cost solution. The room temperature solutions I have experimented with have a very narrow band of usable current densities and are very difficult to design good cathodes for.

The most common chemistry is a phosphoric acid, sulfuric acid mix but this works best at temperatures of 110° F plus. This may be OK if you live in Delhi during August but for most of us that is not room temperature. This solution will attract water from the air if you keep it at room temperature. In time this will degrade the performance of your bath. In the monsoon this could be a big problem. You will need to keep the bath heated to drive off the excess moisture. Good luck in your search.

John Holroyd
- Elkhorn, Wisconsin



This public forum has 60,000 threads. If you have a question in mind which seems off topic to this thread, you might prefer to Search the Site

ADD a Q or A to THIS thread START a NEW THREADView This Week's HOT TOPICS

Disclaimer: It's not possible to diagnose a finishing problem or the hazards of an operation via these pages. All information presented is for general reference and does not represent a professional opinion nor the policy of an author's employer. The internet is largely anonymous & unvetted; some names may be fictitious and some recommendations may be deliberately harmful.

  If you need a product/service, please check these Directories:

JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & Devices


©1995-2017 finishing.com     -    Privacy Policy
How Google uses data when you visit this site.