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topic 1198

How to Darken Copper, Brass or Bronze

A discussion started in 1997 & continuing through 2017


Q. I am trying to figure out how I can darken metals of copper, brass or bronze in a relatively safe manner. I know that this can be done using selenious acid, but would like to find a way to do it with more "user friendly" chemicals, do you have any suggestions?


Paul D [last name deleted for privacy by Editor]
- San Leandro, California


A. You can try Jim Watts' favorite sulfide from egg formula (see letter 1178 or 12714)

tom pullizi signature
Tom Pullizzi
Falls Township, Pennsylvania






- Cambridge, Ontario


A. Use liver of sulphur Liver of Sulphur [linked by editor to product info at Amazon]. It will turn copper or silver from brown to black . You can order it from Gessein^Gesswein. This is an excellent product and works great. Although it does smell like rotten eggs.

Ed Kassery


A. Selenium dioxide is a fantastic chemical for blackening copper and brass. In fact, it is the chemical trophy engravers use on a laminated brass plaque to make the lettering black (the lettering cuts through the lacquer). It's totally jet black and very hard. The product they use is called Gravoxide or oxidizer.

It's more readily available in Birchwood-Casey Gun Blue [linked by editor to product info at Amazon] Gun Bluing. It's advertised as a blue/black oxide finish for steel but it is very effective on brass/copper. Brasso [linked by editor to product info at Amazon] polish does not readily remove this finish.

I'd recommend an acid pickle to remove existing oxide or whatever method you have to get the metal very, very clean first.

Danny Miller
Austin, Texas

Liver of Sulphur

Liver of Sulphur

June 25, 2009

A. To darken brass, you must first strip any varnish on it.

Surprising, one of the most commonly available household chemical you can use to darken brass is Palmolive Dishwashing liquid. Look at the label and see if it contains sodium bisulphite and other sulphur derivatives. These are very similar to the chemicals in Liver of Sulphur.

Apply the dishwashing liquid with very little water to the bare brass and keep rubbing till you get the color you want. This will take only a few minutes. When you get the color you want, wash off the dish washing liquid.

Hong Lim
- Avondale, Arizona

July 3, 2009

Hi, Hong. My Palmolive Dishwashing Liquid does not list its contents at all except to say that it is phosphate-free and do not use with chlorine bleach.


Ted Mooney,
Teds signature
Ted Mooney, P.E. RET
Pine Beach, New Jersey

January 25, 2010

thumbs up signPalmolive actually worked. Can't believe it. Few minutes and it looked like it aged months - and a nice brown. Thanks for the great tip!

Jeff Mucci
- Pittsburgh, Pennsylvania

February 9, 2010

Q. Regarding Hong Lim's suggestion to darken brass with Palmolive Dishwashing Liquid, what would I use first to strip the varnish from a brass chandelier?

- Grand Rapids, Michigan

February 15, 2010

A. Hi, Ellen. If the coating is brass lacquer, you can remove it with with Acetone [linked by editor to product info at Amazon] or lacquer thinner [linked by editor to product info at Amazon]. If it's a more durable coating, you can probably remove it with Aircraft Stripper [linked by editor to product info at Amazon]; it will not hurt metal, but is really noxious stuff absolutely demanding goggles [linked by editor to product info at Amazon], protective gloves [linked by editor to product info at Amazon], and truly excellent ventilation.


Ted Mooney,
Teds signature
Ted Mooney, P.E. RET
Pine Beach, New Jersey


Q. Can anyone give me the location/phone number of where I can get in touch with the supplier Gessein^Gesswein referenced in one of the responses above?

Kim M [last name deleted for privacy by Editor]
- Azle, Texas


A. The spelling was incorrect on your inquiry, it should be "Gesswein" polishing tools and accessories.

Gary Garcia
- Modesto, California


Q. We are lasering brass with a YAG laser and then using Gravoxide to turn the lettering black. It looks fine for a few days but then gets fuzzy looking (spider webs out from the text) because the Gravoxide isn't neutralized (maybe?) and keeps working. Does anyone have any ideas about another chemical to use or how to stop the Gravoxide from staying active?

Joe Midkiff
awards industry - Statesville, North Carolina


Q. I am etching brass washers to make jewelry and would like to know of a relatively safe and economical way to do this. I have some directions that call for brass darkeners (Brass oxidizer) comes in a pint size container...I don't need anywhere near this amount.

Kathryn Adams
teacher - Easley, South Carolina

Ed. note: Brass Darkening Solution [linked by editor to product info at Rockler] is available in 2 oz. bottles as well as 8 oz. and 32 oz. You are wise to not buy far more than you need. Good luck.


Q. Can someone tell me a simple kitchen formula for turning copper or bronze to green? I have heard something like vinegar and ammonia plus a third ingredient, but have no idea of the proportions. I want to know because I want to stain my concrete floor. I used silver, gold and copper powder from Daniel Smith on wet concrete and got a beautiful green and black coloration, with a little brown. Now I am working with dry concrete and I want to try the copper powder again, and spray on a solution that will oxidize it. Then I will apply a clear concrete finish. Thank you.

Jane Seymour
hobbyist/artist - Freeland, Washington


A. Well, more of a bathroom formula than a kitchen formula for turning copper to green: urine. Conservators of old paintings often use this method to create verdigris for mixing paint.

Lee Boychuk
- Saanichton, British Columbia, Canada

June 16, 2010

A. For the person asking about a green finish:

Green Patina Formula:

2 parts white vinegar
1 1/2 parts non-detergent ammonia
1/2 part non-iodized salt

Clean fixture with Windex-type cleaner.

Premix patina solution in Windex-type spray bottle
Spray Windex cleaner on fixture to break surface tension, leaving it on when you apply patina solution.
Apply patina solution by spraying onto fixture, preferably in the early evening on a high humidity night.
Allow to set for 1 hour, then reapply solution observing where you missed applying on the first coat. If there seems to be oil that is repelling the patina solution, clean it off with the Windex cleaner.
Allow to sit overnight. In low humidity desert areas, use a plastic bag to create a tent over fixture (without making contact with it) to help keep the humidity high during curing. If there is low moisture in the air, the solution will dry out without creating the patina effect.
The result will be a bright green powdery patina. Do not rub off. In time (and re-applications) this finish will become permanent. The brightness will fade with time. To reduce green, cut back on the salt content. Color and effect is greatly affected by application ambient temperature and humidity.

Scott at Redstone Manor
- Keymar, Maryland, USA


Q. I have a house built in 1963 and all of the kitchen cabinets and drawers have hammered copper pulls that are no longer bright and shiny. I would love for them to be black, but I don't want to just spray paint them a flat black. Is there anything I can do to make them oxidized to a black finish? I hope that this makes sense because I have never had any experience with metals.


Lauren White
consumer - Toccoa, Georgia

A. Hi, Lauren. If they are real copper (check with a magnet first to make sure they're not steel), and there is no lacquer or clear coat on them, what you have read on this page should work. Good luck


Ted Mooney,
Teds signature
Ted Mooney, P.E. RET
Pine Beach, New Jersey


Q. My daughter is moving into a new house. Her fixtures all have the appearance of oil rubbed bronze. I have a lovely chandelier that is perfect for her dining room, except it has a shiny brass finish. Is there any way to paint or otherwise refinish it to give it a darker, duller look?

Terry Foster
crafty mom - Columbia, Missouri

April 18, 2008

Q. I have a lovely chandelier that has a shiny brass finish. I would love to tone down that shininess. Actually I would love to find a way to refinish it with out taking it down and taking it apart? I know that is a lot to ask. But, that would really be a pain.

Is there a way to do this?



Laura Nygaard
hobbyist - Rancho Santa Margarita, California

A. Hi, Terry; Hi, Laura

If you know the chandelier to be real brass, you can try to remove the lacquer from it with Acetone [linked by editor to product info at Amazon] or lacquer thinner [linked by editor to product info at Amazon]. Then you can darken it as above. But easier and safer, if not as permanent, might be a Rub'N'Buff [linked by editor to product info at Amazon]. Good luck.


Ted Mooney,
Teds signature
Ted Mooney, P.E. RET
Pine Beach, New Jersey

September 8, 2008

A. I would try to coat the surface of the chandelier with a dark glaze. The result would be a delicate finish, but a Chandelier doesn't get much handling and would look great for a long time to come. You could purchase some water based glaze and add extremely dark water based paint (found in craft stores) until it is the color you like and paint it on the brass with a small brush. This will make it look "antiqued". You can do several coats depending on how dark you want it to look. It will also tone down the shine.

I have also painted brass chandeliers white or off-white, or even a color! They look gorgeous! Just make sure you have cleaned it well and spray it with white paint.

Angela Burns
- Chester, New Jersey

June 20, 2009 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread

Q. We own several lamps and lights that are Brass Plated. Can you please tell me how to tarnish the plating so that it appears darker? Is there a simply product that can be purchased to accomplish this? If so, can you please tell me where to buy such product? Thanks!

Tim Edwards
home owner, hobbyist - Clarkston, Michigan

April 2017

Hi Tim. If something is 'brass plated' instead of real brass, and you want to patina or darken it rather than paint or wax rub it, all you can do is cross your fingers and hope. Often the brass plating is too thin, worn or porous for good results. Further, a lot of modern 'brass plating' is not brass at all, but nickel plating followed by a brass-toned translucent lacquer; so when you remove the lacquer to attempt the patination, the brass color is gone.


pic of Ted Mooney
Ted Mooney, P.E. RET
Pine Beach, New Jersey
Striving to live "Aloha"

September 3, 2009 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread

Q. I am working on a "shadow box" for someone who is retiring from the Navy. The shadow box holds a flag and all of the member's medals. Inside the shadow box is a brass plate with all of the tours of duty. Unfortunately it is very hard to read the etching, is there any way to darken the plate so the etching is easier to read?

Shannon Van Meter
Buyer - Ridgecrest California

September 30, 2009

Q. I want to match a new panel I am making with a hammered copper sink already in the room. How can I get the new copper to darken and what kind of wax is best for the finish? I called one company and the process they use on the sinks is "secret".

Lois Campbell
hobbyist - Oswego, New York

August 17, 2010

Q. Hi there, I have a lot of jewelry brass backings and would like to turn them black, but use a safe product so it can be worn against the skin and clothing,
Thanks so much for your help.

Debbie Brown
jewelry maker - New Zealand

September 28, 2010

Q. Hello, I need to darken brass for my work (lamps), but I don't have easy access to the darken-it like products.
Even Palmolive washing liquid is not available here (Indonesia) and they never write the components on detergents.

I tried eggs with very little success and I am looking for some simple way to reach.
Please help me!

FX Hoffman
product designer - Bali, Indonesia

January 23, 2011

Q. Hello ,
Does a blackened brass with Rockler's Darkening solution hold up in a outside weather environment? Thanks!

Ike Sin
- newton, Pennsylvania USA

January 24, 2011

A. Hi, Ike

No, it will probably not hold up outdoors. But you can apply brass lacquer after the darkening, and then it should be okay.


Ted Mooney,
Teds signature
Ted Mooney, P.E. RET
Pine Beach, New Jersey

Brass Lacquer

January 29, 2011

Q. Thank you for the info! A follow up question, is there anything that will darken brass and survive outdoors? Thanks Ike

Ike Sin [returning]
- newton, Pennsylvania USA


A. I'm not sure that we understood each other, Ike. If you blacken it and then lacquer it, it will hold up outdoors for a couple or a few years. The lacquer is easily stripped and replaced.

There are dark "Lifetime Finishes", which you may have seen on door hardware. But these require very expensive PVD (physical vapor deposition) machines, and are applied by OEMs not by consumers.


Ted Mooney,
Teds signature
Ted Mooney, P.E. RET
Pine Beach, New Jersey

sidebar2 March 18, 2011

Q. I have a chandelier made of steel and tubular steel and painted in a pewter color (cold grey/blue tones) with a highly lacquered finish. I'd like to change the finish to bronze (warmer tones) and I have some professionals telling me that it cannot be done over the high lacquer. Do you have any suggestions? Would auto paint cover? It is a detailed fixture and cannot be sandblasted b/c of the wiring.

I appreciate any suggestions.


Lisa Gold
homeowner - Orange, Connecticut

March 21, 2011

A. Hi, Lisa.

Simplest, easiest, cheapest would be the Wax Rub if it works, so I'd try that first. If not, you can try removing the lacquer with lacquer thinner. If that doesn't work you can remove it with the far more powerful Aircraft Stripper, but only outside with good ventilation, not in place. Then you can use one of the fancy paints like American Accents.


Ted Mooney,
Teds signature
Ted Mooney, P.E. RET
Pine Beach, New Jersey

December 14, 2011

Q. Hi ! I am remodeling and bought wonderful doors at a salvage place. The handles were gold plated. I had the plating and underlying zinc removed leaving very bright brass. I would like to make the brass appear darker with a rosy tone to compliment a chandelier in the room. Is this asking too much ? I would appreciate any advice. Thanks !

Diane Valine
- Rancho Palos Verdes, California, USA

Rub 'n Buff Sampler

December 18, 2011

A. Hi, Diane.

A wax rub is probably the fastest and easiest route to the color you want while maintaining a real metallic look =>

but the durability of that approach is questionable depending on exactly what you mean by "handles". Good luck.


Ted Mooney,
Teds signature
Ted Mooney, P.E. RET
Pine Beach, New Jersey

April 30, 2012

Q. I have a couple of reproduction ancient bronze rings, and would like to put a dark brown patina on them similar to if they were dug up. I have tried liver of sulfur, the liquid form but after wearing them a day or two the patina starts to wear off. Did I not use it correctly, or is there another method to oxidize them?

William Summe
- Griffin, Georgia, USA

May 16, 2012

Q. Hello everyone I read the thread before asking my question. And it was really informative & helpful. My question is how to create a shading effect on Gold Jewelry. One particular one I remember seeing it was a gold flower necklace & the petals had this shading effect from bright gold to dark brown. Any kind of help will be appreciated. Thank You

Viral Soni
- Mumbai, Maharashtra, India

July 10, 2012

Q. Hello everyone,
I have a brass brass plate with lots of holes drilled into it that I would like to get really black. Some of the beams in the plate are as thin as 0.1 mm. We already tried to leave the plate in a solution of 250 g Copper-Hydroxycarbonate and 1 liter of ammonia for 3 hours and overnight. 3 hours wasn't sufficiently dark and the overnight treatment ate away a lot of the fine beams. Could you point me to other treatments or variations which are milder than this but also lead to a strong black? A black deposit on the plate would also work, but I do not know of a process to do this right now.
Any help would be appreciated.

Thanks a lot and best regards,


Andreas Frölich
- Karlsruhe, Germany

December 27, 2012 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread

Q. How to get the black color on brass using chemicals?

Reza Karimkhan
- Tallahassee, Florida

February 18, 2013

Q. I have a copper weathervane (of a Labrador Retriever) what has turned nearly black, from being outdoors over 4 years. I would like to lighten it and preserve the lighter finish. The surface is 18" x 12", so copper cleaner is taking too long. The natural color is not shiny copper, but somewhat antiqued. What do you recommend? Should I just leave it dark brown?

Jim Carlisle
- Colleyville, Texas, USA

April 14, 2013

A. Easy method for darkening brass:

I wanted to darken my antique brass hardware that had a finish on it. I needed to get the finish off first which I did with fine steel wool after sand blasting. I guess you could use acetone or some kind of paint or finish remover. I tried Palmolive but it didn't work. I ended up using ammonia and it was really simple. I put all my hardware face up on a cookie sheet inside a plastic trash bag. Lay the trash bag on the counter and slide the cookie sheet in. Fill a glass bowl with a couple cups of ammonia. Place the bowl of ammonia in the center of the cookie sheet. I also place a heavy drinking glass upside down in the center of the ammonia bowl to keep the bag up and away from the hardware. This way the fumes from the ammonia was able to circulate. I then tied up the bag and left it over night. In the morning the hardware was perfectly aged. It looks A bit dry so I am going to rub a little polish on it to just liven it up a bit. This method was simple and quick.

Nancy Lucier
- Holland, Massachusetts

April 22, 2013

Q. Dear Sirs / Madams

As a very nearly retired signmaker, I have been making bronze plaques for over 50 years but have now hit a problem; the toning powder I used is no longer available.

This used to come for a company called Walsh and the label said "Contains Antimony Sulfide". I would mix the powder with Ammonia and brush it onto a bronze casting, let it dry and brush it off. The result was about "Pantone 497".

bronze powder bronze plaque

Can anyone help me with a formula to make an equivalent powder?

Thank you so much, in advance.

James Jacobs
- Bristol, Avon, England

July 12, 2013

Q. Hi Mr Jacobs

We are a signmaker facing the same problem sourcing for the bronze powder used to tarnish brass.

May we know have you found another supplier other than Walsh?

Would appreciate it if you can share.

Thank you!

Christine Teh
- Singapore, Singapore

October 9, 2013

A. I am currently using ammonia to darken a brass piano leg caster and it appears to be working. I've only had it outside in a sealed bag for about 24 hours. It hasn't reached the desired darkness yet but seems to be getting there. The first thing I had to do was remove the lacquer finish. I bought some finger nail polish remover as it contains acetone but it did not remove the lacquer, only seemed to etch it slightly. Having used it however, did make it easier removing the lacquer with sand paper. Once that was done, I put some ammonia in a disposable plastic storage bowl, used the lid to hold the caster and placed both into a small plastic garbage bag which I tied shut. Don't expect immediate results for a dark color using this method.

Carolina Whitten
- Columbia, South Carolina, USA

Darkening a Brass Chandelier that has heavy Green Patina


February 1, 2014 -- this entry appended to this thread by editor in lieu of spawning a duplicative thread

Q. I just purchased an old chandelier which appears to be brass. It has a heavy patina on it and I would prefer a darker color.

Is there any way I can achieve this other than spray painting it?

Selena Norris
- Atlanta, Georgia

February 2014

A. Hi Selena. I find that to be quite an attractive chandelier and hate to see you mess with it. But the first thing to find out is whether it's actually brass. If it's magnetic, it's not brass, and is at best brass plated -- which probably will not stand up to the darkening chemistry. If it's not magnetic, it could of course be aluminum or zinc; but you may be able to sense whether it's aluminum just from the light weight. If you're pretty sure it's brass, then this thread has worthwhile ideas for you. Good luck.


Ted Mooney,
Teds signature
Ted Mooney, P.E. RET
Pine Beach, New Jersey

How to darken brass without immersion

January 28, 2015

Q. Hello all,

I have learned so much from reading this thread! I would like to darken (to an almost black color) some brass lamps that I found. I have determined that they are in fact brass and have removed the clear coat on top using acetone and some scrubbing. I have looked into many of the brass darkening solutions on here, which would definitely work, but I would need a LOT of the solution to completely cover and soak each lamp as they are not small objects. I am wondering if it would still work if I used the solutions on a rag and rubbed the lamps or if there is some other technique for larger objects that I am not finding.



Abby Godfrey
- Raleigh, North Carolina, United States

January 31, 2015

Q. Hi. How can I remove a lacquered brass coating on a solid brass faucet that has a PVD coating? I have tried Acetone and lacquer thinner and now a spray paint stripper with no luck.

Heather Ezyk
- East Longmeadow

February 10, 2015

A. Good day Heather.

I have some experience with electrophoretic lacquers and the stripping of the coating. I used a stripper which contained methylene chloride (which strips epoxy) and formic acid. (Atotech/Aquatone PS 400).
This stripper "softens" the coating, requiring mechanical removal of the coating with a brush, in a bucket of water.
This stripper requires a "layer" of water on the surface to prevent evaporation of the methylene chloride.
Great care must be taken with the stripper, as the formic acid is EXTREMELY corrosive. A splash on exposed skin will produce a burn/blister instantly.(Formic acid is the chemical which fire ants produce!)
I strongly recommend the highest degree of personal protection(when using any corrosive chemical) as a full face shield,respirator, arms length gloves.
Any chemical can be dangerous, but with the proper PPE, you can minimize the risk.
I hope I didn't alarm you.
Best wishes.


Eric Bogner - Lab Tech.
Aerotek Mfg. Ltd. - Whitby, Ontario, Canada

February 10, 2015

A. Not to throw a wrench into your plans, but we PVD coat brass faucets on a regular basis and they are never lacquer coated. That is one of the great advantages of the coating -- it is pretty much a lifetime finish. You may be trying to strip the PVD coating off of the surface. I say this because PVD coatings are pretty much impervious to the chemicals you have used. PVD coatings can be stripped off, but it requires special chemicals in heated tanks in a properly vented facility. It is not done in situ. To add to the problem, you need a different chemical to strip a Ti-based PVD coating than you do for a Zr- or Cr-based PVD coating.

jim treglio portrait
Jim Treglio
- Vista, California

March 3, 2015

Q. I have 4 cast iron, brass plated steel piano stool claw feet, with glass balls. Two of which have been rubbed with Stripper X and steel wool. This has removed the dark black vintage patina and has exposed the brass which is shiny, and in some spots the silver steel is showing through. The other 2 feet have not been messed with.
My question is this: Is there any way to get the 2 feet that have been stripped to look like they did before they were messed with, so they match the other 2 feet that were not touched?
I have read through the posts in this thread and I'm wondering if the ammonia method in a plastic bag will work or is there something better?

Thanks in advance!

Wynnie Keegan
- Temecula, California USA

1198-5a  1198-5b
March 4, 2015

Q. Hi my name is Matthew. So the situation I am faced with is this. I am making a machined Alum holder to display my fathers three shells from his 21 gun salute. On this holder will be 4 engraved placards that will contain his information. I need these to be Black prefer flat black so that when they are engraved the brass coloring shows through. So my questions. Which material Brass, Bronze or Copper and what process? Originally I was going to have the alum holder anodized black but from what I can find out Brass cannot be anodized. So to keep everything looking the same will hopefully use the same process as the other metals for the aluminum.

Thanks for your help in advance,

Matthew R
just me lol - Arizona

March 2015

A. Hi Matthew. If you look at trophies you'll see that they are usually brass colored with engraved black lettering; high school rings will be gold on the raised areas and black in the recesses; jewelry too, and oil-rubbed items will be bright on the raised areas and dark in the recessed areas. This convention is because raised and exposed areas tend to wear and get shiny whereas recessed areas tend to retain their blackening and accumulate oxidation and dirt. For that reason I'd suggest that you entertain the possibility of perhaps making the placards brass colored with black engraving instead of the reverse. Further, it's hard to make different metals like brass and aluminum match by coloring them black or any other color because they have a different grain, texture, etc., and the colors will look different in different light (black anodizing is actually either very very dark blue or very very dark red). So I think you'll get a better match and more natural look with brass placards to match the shells -- but it's a matter of taste and I don't claim to have much.

The aluminum probably needs to be anodized and dyed black whereas the brass probably needs treatment with selenium dioxide as described in this thread. Good luck.


pic of Ted Mooney
Teds signature
Ted Mooney, P.E. RET
Pine Beach, New Jersey
Striving to live "Aloha"

April 5, 2015

A. Wynnie and Matt, the solutions you seek are the same. The process is a chemical which turns the copper element in each of your metals from a light brown through to a dark black when used with heat. Then apply lacquer and wax. Matt, your process is to dip the brass plaques into our chemical till black then application of vinyl film (letter mask) you will then get letters etched at trophy shop.

Call us at Restore It Yourself Products if you need more info.

Barry Feinman

Barry Feinman
Restore It Yourself, Inc
supporting advertiser
Carlsbad, California

restore it yourself banner

May 14, 2015

A. I might be a little late with the addition to this thread as I was researching something else and stumbled across this - I know that Bronzing Powders are short on supply but know that Access Chemicals Ltd in Tamworth, UK sell Brown Bronze Powder for "brush on" application as described above. It's a niche market and only a few manufacturers produce this product now. Apologies if this is of no use.

Richard Clarke
- Coalville, Leicestershire, UK

July 9, 2015

! I just stumbled onto this page through a google search and this may be way outdated but I found so much great information on here. I am working with Bronze and Brass sheet metal and tried some of these tips to get the right finish and found the Liver to work best. I thought I'd pass on a tip: I purchase my raw metals from a local company with good pricing and real nice people to deal with, Widener Metals in PA. I just wanted to try to return the favor. Thanks guys for the tips!

Thomas Tingle
- Levittown, Pennsylvania

July 2015

thumbs up signHi Thomas. Thanks. We'll have to see how it goes since commercial testimonials on this no-registration-required, largely anonymous, site often go south very quickly :-(


pic of Ted Mooney
Ted Mooney, P.E. RET
Pine Beach, New Jersey
Striving to live "Aloha"

July 12, 2015

A. I ran out of the chemicals I've used to do this in the past. Came across this thread while searching for a household solution to the problem. Couldn't find what I was looking for so I started experimenting. I quickly discovered that a mixture of hydrogen peroxide & white vinegar works great! My hinges have been soaking about an hour now and look better than the ones I've done before. Keep in mind, these were raw brass, it won't work if they're lacquered.

A. Desiderio
- Downingtown, Pennsylvania USA

August 25, 2015

Q. I have 2 copper sinks in a bathroom and one, being used more than the other, has lost a lot of it antique brown finish. Will the Palmolive dish soap technique work on this or should I go with something else? Also, once I get the color finish I want, how do I keep it since both sinks are used on a daily basis?

Thank you!

Gail Hyfantis
- Seymour, Tennessee, USA

October 16, 2015

A. Gail, great questions. The patina created on copper sinks is beautiful but fragile. Harsh chemicals and abrasive scrubbing will remove this finish.

A repair kit which we created to resolve issues like yours will quickly restore your beautiful finish. We also give you a hardy brown wax which will help protect your finishes. Frequent application of our wax will keep it looking its best. A call to our offices and we will help anyone with solutions for copper, bronze. and stainless steel

barry feinman
Barry Feinman
Restore It Yourself, Inc
Carlsbad, California

December 11, 2015

Q. Hey
I have a statue made up of brass. I want to turn this into golden colour with glossy appearance. Which wax and lacquer I should use? Please suggest. Thanks.

Swanand Ghule
- kolhapur maharashtra India

How to make liver of sulphur to blacken brass

February 6, 2016

Q. Hi, I live in Iran and I have a small job in plating and patina. I need to blacken brass and copper but I can't find liver of sulphur here. Can I make by myself or use another solution as well as that. I will be so glad if you help me.

Amir goudarzi
- Iran tehran

February 2016

A. Hello cousin Amir. Try enclosing the item is a plastic bag with a crushed hard boiled egg, and tell us what happens. Thanks.


pic of Ted Mooney
Ted Mooney, P.E. RET
Pine Beach, New Jersey
Striving to live "Aloha"

February 9, 2016

A. Try next download free metals colouring and cyanide free plating handbook( 0 $!):

Hope it helps and good luck!

Goran Budija
- Zagreb,Croatia

February 17, 2016

Q. I used the Birchwood Casey Perma Blue to get a dark patina on 385 bronze. It worked great. This was after trying liver of sulfur without much success. My question is should I now apply a clear coat lacquer? Or will it maintain the patina without the coating. The material is being used as a trim between a existing backsplash and new black granite counter.

Thank you

Stephen Von Ohlen
- Carlstadt New Jersey USA

August 31, 2016

Q. Once I am finished changing my shiny brass patio door levers to an oil rubbed bronze finish, don't I need to apply a permanent protective coating or lacquer to the metal? They are used daily and exposed to the elements. If so, what would I use? Thanks

Jane Lockwood
- Plainwell Michigan United States

April 19, 2017

A. Researching historical metal processes, I came across the following 19th century references on Google Books for bronzing formulations. While modern products may be more efficient, those wishing to replicate the old finishes will hopefully find these helpful.

The last is a French treatise with several formulations for the famous French green bronze coating. You can copy and paste into Google Translate.

Craig Sholley
- Carlisle, Pennsylvania USA

April 2017

thumbs up signThanks for the great references Craig!

The French book displays as pictures of text, rather than as cut&paste-able text; I do see a way of translating it (first download the book as plain text, then copy and paste the plain text into, but if someone knows a simpler way we'd like to post it. Thanks again!


pic of Ted Mooney
Ted Mooney, P.E. RET
Pine Beach, New Jersey
Striving to live "Aloha"

January 31, 2017

Q. Hi, We purchased this Weslock handle in the oil rubbed bronze,however did not realize this had more red tones that would not match our door. What is the easiest way to darken this to a more bronze/brown color? Will using Palmolive work? Thank you...

peggy leung
- Torrance, California

March 26, 2017

Q. Hi,

Hi. would it be possible to darken the copper color on this lamp? It's Brushed and anodised aluminium.

Kind Regards

Clara Nolan
- dublin, ireland

April 2017

A. Hi Clara. As you already recognize, this lamp is made of aluminum. Therefore, the chemical methods which are the subject of this thread won't work because there's no copper, brass, or bronze for the chemicals to react with.

You can either paint it or apply a wax rub. My experience with the wax rubs is that they are okay if the surface is not a touchable one, which seems to be the case here. Good luck.


pic of Ted Mooney
Ted Mooney, P.E. RET
Pine Beach, New Jersey
Striving to live "Aloha"

Patinas for Silicon Bronze

June 14, 2017

Q. I recently bought a bronze vase its 19th century but it looks like brass how do I get the dark patina back on it? Many thanks in anticipation.

Mark manning
- Leeds Yorkshire england

July 13, 2017

Q. I have blackened brass cabinet hardware that the blackening has worn off, especially the handle on the refrigerator. How can I get the blackened appearance back? I was going to try liver of sulfur and than lacquer them again, but is there any other process I can do?

Cher Eppinga
womens touch paint and design - Evergreen, Colorado

August 25, 2017

Q. Very interesting thread and happy to keep it running. I vape an e-cig which is full copper for it's conductivity. Being a bit picky I prefer a darker coloured copper than the bright finish I have now. My question is simply can I safely darken the copper whilst keeping it shiny? And is it a process that needs to be regularly repeated. I'm UK based so would have to use something considered 'safe'.

Again, interested in a lot of what I've read here (and found by accident!!).

Andrew Jones
- Manchester, UK

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