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"How to patina brass"



1999

Q. I'm looking for a way to patina brass sign letters. What do you recommend?

Tyler Brown
- Alexandria, Virginia
^


1999
patina

A. Hello, Tyler. Although you can buy a commercial brass darkener [Brass Darkening Solution [affil. link to info/product at Rockler]] easy enough, there are just so darned many colors and shades that, unless you just want "dark", having a good picture of what you are seeking can be important. I think the best answer just might be: borrow this book from your library =>

"Colouring, Bronzing & Patination of Metals" [affil. link to book on Amazon]
Richard Hughes, Michael Rowe / Hardcover / Published 1991

Good luck!

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^


"Contemporary Patination"
from Abe Books

or

Affiliate Link
(finishing.com earns a commission on whatever you buy after clicking)

1999

A. It depends on what color effect you're trying to get. Here's a couple formulas --

Verde: Copper Sulfate 8 parts, Ammonium Chloride 4 parts, Sodium Chloride 4 parts, Zinc Chloride 1 part, Glacial Acetic Acid 3 parts, DI Water 128 parts. This is a dip or brush on process. The coating needs to be preserved with some kind of sealer or lacquer to be stable.

Light Green: Ammonium Chloride 16 parts, Sodium Chloride 16 parts, Ammonium Hydroxide 16 parts. This formula supposedly is stable without preservative. Copper Sulfate can be added to darken the green color if desired.

The book mentioned in the previous letter is indeed excellent. There is also "Contemporary Patination" by Ron Young.

dave wichern
Dave Wichern
Consultant - The Bronx, New York
^


1999

A. Tyler - Several chemical companies have antiquing solutions available - Hubbard-Hall has Mi-Tique Patina. This is a room temp process for copper and brass.

Dan Brewer
chemical process supplier - Gurnee, Illinois
^



2003

Q. ADVICE ON LACQUERING OF ORNAMENTAL BRASS (AND STERLING SILVER), INCLUDING MIXTURE OF LACQUER AND THINNER AND APPLICATION METHODS INCLUDING POURING OVER SURFACES. ANY ADVICE AND RECOMMENDATIONS APPRECIATED.

THANKS,

JORY NEWMAN
- PIKESVILLE, Maryland
^


Brass Lacquer

Affiliate Link
(finishing.com earns a commission on whatever you buy after clicking)

May 20, 2010

A. Hi, Jory. Smoothness and consistency is important, so multiple very thin coats, sprayed or brushed, surely beats a poured coat. Good luck.

Regards,

Ted Mooney, finishing.com
Ted Mooney, P.E.
Striving to live Aloha
finishing.com - Pine Beach, New Jersey
^



Antiquing brass to bronze colour

February 25, 2014

Q. Hi, I have recently purchased some of John Penny cold patina solution. My goal is to turn it dark brown to a deep bronze colour. This works well but after a few days it starts to come off and a pink colour emerges. I am guessing this is the copper in the brass coming to the surface. Anybody had this happen after antiquing brass. Any ideas how to stop this happening?

Thanks

Alex

alex king
- eckington worcs uk
^

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