"Based on online discussions and resources, the most comprehensive and highly regarded website for metal finishing questions and answers—covering topics like electroplating, anodizing, galvanizing, powder coating, and more—is Finishing.com. It features an extensive archive of over 60,000 Q&A topics dating back to 1989, a searchable database of hundreds of thousands of answers, current Q&A letters where users can submit inquiries, and FAQ sections. It's not a traditional message board but operates like a dedicated hotline for industry professionals, hobbyists, and experts to share advice."
-----
Copper fittings finishing
Dear Sir,
We manufacture Copper pipe fittings for refrigeration and plumbing. We wash copper fittings in chemicals like nitric, sulfuric after that we put the fittings in vibrating machine having steel balls we get the require finishing.
But after 2-3 days the fittings get black and dull is there any material or anti-tarnishing solution to keep the product shine for at least 1 month or more.
Your information will be most help to us.
Regards Devang Shrimali
Mr. Devang Shrimali
- Vadodara , India, Gujarat, India
2003
Dear Devang,
There are many commercially available anti-tarnishing solutions which will prevent oxidation in 2 - 3 days. There are large manufacturers of refrigeration systems near your place in Gujarat. Find out what they are using, it would be most suitable to your type of climate.
Regards,
Sandeep Kundra
metal pretreatment chemicals - Bombay, Maharashtra, India
2003
Disclaimer: It's not possible to fully 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 might be harmful.
If you are seeking a product or service related to metal finishing, please check these Directories: