 ArtMetalsocial networking for the metal arts |
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need help..recipes for patination on brass
Mari -
Sunday, June 18, 2006 - 1:19pm
patina Help!!  Patina recipe
Mari -
Tuesday, June 20, 2006 - 4:12am
Mari I have been googling..some success but moderate to tell you the truth. I checked amazon for that book...$85.00....Oh God I could kick myself...  You can get copper nitrate
QuiQue -
Tuesday, June 20, 2006 - 2:32pm
You can get copper nitrate from many farmers supply stores. Farmers use it to get rid of algae in ponds. As to the red brass... you don't have to have the red brass per se. This patina recipe will turn yellow brass into the red brass as a background and then create the blue green patina on top. Note that you are more likely going to have to remove a protective clear coat from the "brass charms" for the patina to be able to develop. As to attaching a picture to your posts. If you log in to your account and create a new blog entry, you will be able to upload a picture and attach it to the blog. Heck I think as long as you are logged in, you should be able to add an image to a comment also like I have. Note that this image is from the book but is for cast bronze and not yellow brass. BTW, it is NOT good to put your email address on any post. The spam bots will pick it up in no time and you will start getting lots of spam.
QuiQue - creating the creators dream  If you would like more
warren -
Thursday, June 22, 2006 - 4:15pm
If you would like more recipes there is this website: http://www.sciencecompany.com/patinas/patinaformulas.htm They also have the chemicals for sale. local resources for copper nitrate
visitor -
Wednesday, July 26, 2006 - 10:10am
QuiQue, knowing I can find copper nitrate in farm stores and it's common use in ponds is wonderful information. Information of this sort would be a perfect addition to any book that includes patina data. For me, operating as an independent, "teach my-self" sort, finding the chemicals locally has been a problem/challenge. I have Kipper's book open as I am about to patina and found your information using a search for Birchwood Casey (I am still searching for a local resource for their materials). What did people do before "google"? Thank you for sharing your rich knowledge! Anne There is a company called
visitor -
Saturday, July 1, 2006 - 9:40pm
There is a company called Sculpt Nouveau who's founder is a well known patination expert. They sell pre-mixed patinas for all metals, hot or cold applications, and a variety of waxes (colored or not) that work great! They also have workshops around the country to teach you how to use them. Check them out online at www.sculptnouveau.com patina in wood craft
visitor -
Thursday, November 29, 2007 - 5:45am
i want to know the patina process in wood can u help me Patina wood
visitor -
Thursday, November 29, 2007 - 10:15am
You can use a commercial product that contains powdered metal to coat the wood, then apply the patina chemical which will react with the powdered metal in the coating. Many craft stores and some hardware stores in my area carry these products and I have actually made my own when needed.  Copper nitrate
Fred Zweig -
Thursday, November 29, 2007 - 11:21am
I was not aware that copper nitrate was used as an algicide. I do know that copper sulphate has been used for years to treat water. Copper nitrate needs to be used with caution as is the case with any chemicals. Ron Youngs book on patinas is good as well. Copper sulphate mixed with salt and water can produce a nice patina on brass as well. It takes time to develope it well. Copper sulphate (Aka Blue vitriol) is also used in toilets to treat for root growth in sewer pipes. Bury patinas work well on brass. Liquid ammonia, salt and water used to saturate wood shavings and stored in a lidded bucket. The piece of brass is buried in the shavings and allowed to stand for a few hours to a day. Check it regularly. Do this outside since the fumes can be pretty strong. Claire Sanford wrote a wonderful chapter in "Metal Techniques" on simple patinas. Fred Zweig Changing yellow brass to light tan colour
visitor -
Monday, May 17, 2010 - 8:55pm
Hello, I am wondering about changing yellow brass to a light tan colour. Can this be done? Would you have the recipe/ chemical combination required? Is there another way to patinate besides using chemicals? Combinations
warren -
Tuesday, May 18, 2010 - 5:32pm
Brass is pretty much made from copper so some formulas work about the same. The reason you have to use chemicals is because copper is a self cleaning metal. The colors you get is when the copper reacts to the different chemicals to clean itself. Like getting a tan so you do not get more sunburned. Once the surface is colored, it is actual an oxidation process, the copper will not oxidize further. You can also get some patinas from just heat, but again it is oxidation (again the copper cleaning itself) from the heat causing the colors. www Metalrecipes -- heat and beat to the desired shape, repeat as necessary. hi
visitor -
Tuesday, January 18, 2011 - 11:56am
hi, best regards, patination recipes
visitor -
Thursday, July 28, 2011 - 4:14am
Just seen some interesting patination recipes here, assume they are all for bronze however? |
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ArtMetal
Mari, As you probably have
Mari, As you probably have figured out already, there are many recipes for coloring metals. Many suppliers can supply you with various patinas for brass that work quicker than the patina I am about to discuss. Check google for sur-fin. This company is in California, so it may not be feasible for you to use. Also, see if you can find a copy of "Coloring, Bronzing and Patination of Metals" by Richard Hughes and Michael Rowe.
The patina I am giving you is from their book. It is 5.124 Blue-Green patina on Red-Brown/maroon ground for yellow brass.
200 gm Copper nitrate
1 liter Water
The article is dipped in the cold solution for a few seconds, drained and allowed to dry in air. This procedure is repeated twice a day for about five days, during which time the surface darkens gradually to a red-brown. After about two days, patches of powdery blue-green patina also begin to appear on the surface. When treatment is complete, the article should be left to dry in air for a period of at least three days to allow the patina to develop fully and dry out. When dry, the article is wax finished.
Make sure the article is clean of all grease, paint, waxes, etc. before applying the patina. Some sources suggest a scratch-brushed application of the solution.
Let us know how it turns out.
QuiQue - creating the creators dream
Here's a link to the book from amazon.com. Note that if you buy the book by following this link, a percentage of your purchase will go to ArtMetal. And this would be a great benefit to us...