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Want antitarnish treatment for bright dipped brass that is good to 200 C

Q. Brass items once Etched in Acid Dip gets rid of all oxide layer & get gold shine but shine do not remain stable, Suggest me good antitarnish which is stable at high temperature 200 °C.

Kalpana Charya
plating shop employee - Ranjangaon, Pune, India
March 2, 2010

"The Chemistry of Benzotriazole Derivatives"

on Amazon or eBay
or AbeBooks
(affil link)

A. GM,
Try using Benzotriazole ⇦ on eBay or Amazon [affil link] in the final hot water dip in preventing the tarnishing after bright dip.

All the best.

SHANKARANARAYANAN N
- Bangalore, KARNATAKA

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