No cost, no registration, no passwords -- just aloha, fun & authoritative answers
(as an eBay Partner & Amazon Affiliate we earn from qualifying purchases)

Home /
T.O.C.
Fun
FAQs
Good
Books
Ref.
Libr.
Adver-
tise
Help
Wanted
Current
Q&A's
Site 🔍
Search
pub  Where the
world gathers for metal finishing
Q&As since 1989



-----

Post-dip to improve color of gold plating?

adv.:    Discover the choice made by manufacturers
nationwide for high quality jewelry plating & finishing

red sky plating banner


Q. I have done brass plating on metal but the color of this metal is very light golden and customer wants dark color like 24 kt gold plating. So what chemical should be added to the solution that will produce the closest color to the gold plating in the brass solution?
Which solution enhances the color of the plating? For example, we deposit light color gold plating on jewelry, then dip into the liquid which makes the color more dark yellow and brighter without current.

uzair_sami
Uzair Sami
- Karachi, sindh Pakistan
September 10, 2022


A. You can try old formula for so called french gilding: 4 gms coper sulphate, 4 gms milk sugar, 4 gms sodium hydroxide,1 lit water.Golden yellow on brass.Dissolve sugar and hydroxide in 1 liter of water, boil 15
minutes, then add sulphate dissolved in a small amount of water. Use hot solution (80 °C).

Goran Budija
- Cerovski vrh Croatia
December 20, 2022




(No "dead threads" here! If this page isn't currently on the Hotline your Q, A, or Comment will restore it)

Q, A, or Comment on THIS thread -or- Start a NEW Thread

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:

 
Jobshops
Capital
Equipment
Chemicals &
Consumables
Consult'g, Train'g
& Software


About/Contact  -  Privacy Policy  -  ©1995-2024 finishing.com, Pine Beach, New Jersey, USA  -  about "affil links"