Where theworld gathers for metal finishing
Q&As since 1989
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Green deposit on brass zipper
"Zipper: An Exploration in Novelty"
by Robert D. Friedel
on
AbeBooks
or
eBay or
Amazon
(affil links)
Q. Hello,
We are garment makers. we use brass zipper on some of the items. recently we shipped a consignment of jackets with brass zipper and it took about a month to reach the customer. the customer complained the zipper had green and white deposits on the zipper. the garment is made from printed material. The garment gives off a smell that seems that there was some untreated ammonia
[on
eBay or
Amazon] left in the fabric process.
I am attaching photos of what was found. Please help if any way to simply clean off these deposits in a safe way? we tried a small experiment on one garment by dabbing the deposit with HCl and the deposit melted away. but this is not a safe method to use on 12000 pieces.
Meherally Mahmud
- Karachi, Sind, Pakistan
A. Don't use any acids; Good old Brasso [on eBay or Amazon] should do the needful to clean up and offer corrosion protection for some time.
Khozem Vahaanwala
Saify Ind
Bengaluru, Karnataka, India
2006
A. Try 2-5% ammonium citrate solution, ph must be 8,5- 9. Immerse(min.30sec.) in hot solution(80 C) and then rinse it very well(Try it on some test pieces)! Hope it helps and good luck!
Goran Budija- Cerovski vrh Croatia
2006
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