Patina is a brand incubator. We invest capital, advise, and facilitate global distribution, including 3PL setup, marketing, Amazon strategy, retail strategy, and inventory financing. Patina is a specialty purveyor known for selling a curated mix of affordably priced gifts, home decor, scents, paper goods, jewelry and toys in an inspiring. Green Patina Aging Solution (PA901) Green Patina Aging Solution is an acidic solution in water and when applied over Oxidizing Copper Paint will react with the real metal particles in the paint, thus speeding up the oxidization process creating a beautiful, authentic Green Patina finish. Use with: Oxidizing Copper Paint.

2020-07-30

If you’re looking for patina metal finishes, visit Arizona Iron Supply in Phoenix. We sell a variety of patina solutions for brass, copper, bronze, and steel. Transform the appearance of ordinary metal with a verdigris, pewter, or rainbow patina finish. Great for both interior accents and exterior architectural details, patina finishes add an instant antique, rustic, or industrial style to any metal surface.

What is a Patina?

A patina is a surface coating on metal that is formed by a chemical reaction. Over time, oxidation naturally produces a film on the surface of copper, iron, and other metals. Oxidation is why iron eventually rusts, and why copper turns green. Applying a patina solution speeds up that surface reaction. With a patina solution, you can intentionally create a weathered or tarnished finish to metal objects without the wait.

Patina, Brighton, Tennessee. 2,140 likes 1 talking about this. Custom picture frame shop with all the extras! We have 100s of samples, matting, glass & knowledgeable artisans to assist you.

Rainbow Patina Finish

If you’re inspired by the bright reds and intense blues of Arizona sunsets, use rainbow patina to achieve the most colorful results. Rainbow patina finish on exterior features perfectly complements the local red sandstone. No two rainbow finishes look alike—each application will produce totally unique patterns.

Blue Green Patina Finish

A greenish patina, called verdigris, forms on copper and copper alloys due to the slow reaction of carbon dioxide and water over time. Green and blue-green patina finishes let you recreate this effect in minutes. Transform ordinary steel into antique copper—it’s not alchemy, but it’s close.

Pewter Patina Finish

For shimmering deep blue-gray or dark gunmetal tones, use a pewter patina finish. Pewter patina metal looks great with everything from modern glass to antique wood. Revive dull, tarnished metal with a lustrous new hue—pewter finish breathes new life into old metal.

Exterior Uses

Patina metal is great for exterior features because the patina will only intensify with age and exposure. In fact, adding an acid sulfate patina treatment to exterior metal work can even prevent deterioration from corrosion. From awnings and lampposts to gates and facades, patina metal finishes add a touch of individually to exterior features. Common uses for patina metal in exterior design include:

• Roofing and Gutters
• Railings and Fences
• Facades and Siding
• Signage and Lighting
• Garden Features

Interior Uses

Applying a patina finish to metal furnishings and fixtures adds style and cohesion to interior accents. Create a classic French style kitchen with zinc or copper patina countertops. Refinish a paneled cabinet with blue-green patina to create an instant heirloom. Update brass handles, hinges, and faucets with pewter finish for a modern, industrial look in the bathroom. Common interior design uses for patina metal include:

• Lighting and Frames
• Sinks and Countertops
• Range Hoods and Fireplaces
• Wall Panels and Backsplash
• Furniture Accents

Contact Us

Arizona Iron Supply offers rainbow patina finish, verdigris, pewter and more. We also stock Rust Resist to stop the chemical reaction once you’ve achieved your desired effect. If you’re searching for metal patina finishes, contact us or visit our warehouses in Phoenix or Tucson to learn more.

Photo by Jimmy Ofisia on Unsplash

Patina (/pəˈtiːnə/or /ˈpætɪnə/) is a thin layer that variously forms on the surface of copper, brass, bronze and similar metals (tarnish produced by oxidation or other chemical processes), or certain stones,^[1] and wooden furniture (sheen produced by age, wear, and polishing), or any similar acquired change of a surface through age and exposure.

Additionally, the term is used to describe the aging of high-quality leather. The patinas on leather goods are unique to the type of leather, frequency of use, and exposure.

Patinas can provide a protective covering to materials that would otherwise be damaged by corrosion or weathering. They may also be aesthetically appealing.

Usage[edit]

On metal, patina is a coating of various chemical compounds such as oxides, carbonates, sulfides, or sulfates formed on the surface during exposure to atmospheric elements (oxygen, rain, acid rain, carbon dioxide, sulfur-bearing compounds), a common example of which is rust which forms on iron or steel when exposed to oxygen, or more specifically the surface that develops on weathering steel). Patina also refers to accumulated changes in surface texture and color that result from normal use of an object such as a coin or a piece of furniture over time.^[2]

Archaeologists also use the term patina to refer to a corticated layer that develops over time that is due to a range of complex factors on flint tools and ancient stone monuments.^[1] This has led stone tool analysts in recent times to generally prefer the term cortification as a better term to describe the process than patination.^[3]

In geology and geomorphology, the term patina is used to refer to discolored film or thin outer layer produced either on or within the surface of a rock or other material by either the development of a weathering rind within the surface of a rock, the formation of desert varnish on the surface of a rock, or combination of both. It also refers to development as the result of weathering of a case-hardened layer, called cortex by geologists, within the surface of either a flint or chertnodule.^[4][5]

Etymology[edit]

The word patina comes from the Italian patina (shallow layer of deposit on a surface) derived from the Latin patĭna (pan, shallow dish). Figuratively, patina can refer to any fading, darkening or other signs of age, which are felt to be natural or unavoidable (or both).

The chemical process by which a patina forms or is deliberately induced is called patination, and a work of art coated by a patina is said to be patinated.

Acquired patina[edit]

The green patina that forms naturally on copper and bronze, sometimes called verdigris, usually consists of varying mixtures of copper chlorides, sulfides, sulfates and carbonates, depending upon environmental conditions such as sulfur-containing acid rain.^[6][7][8][9] In clean air rural environments, the patina is created by the slow chemical reaction of copper with carbon dioxide and water, producing a basic copper carbonate. In industrial and urban air environments containing sulfurous acid rain from coal-fired power plants or industrial processes, the final patina is primarily composed of sulphide or sulphate compounds.^[10][11][12]

A patina layer takes many years to develop under natural weathering. Buildings in damp coastal/marine environments will develop patina layers faster than ones in dry inland areas.

Facade cladding (copper cladding; copper wall cladding) with alloys of copper, e.g. brass or bronze, will weather differently from 'pure' copper cladding. Even a lasting gold colour is possible with copper-alloy cladding, for example Colston Hall in Bristol, or the Novotel at Paddington Central, London.

Antique and well-used firearms will often develop a layer of rust on the action, barrel, or other steel parts after the original finish has worn. This layer of rust is often erroneously^[14] called a patina.

Applied patina[edit]

Artists and metalworkers often deliberately add patinas as a part of the original design and decoration of art and furniture, or to simulate antiquity in newly made objects. The process is often called distressing.

A wide range of chemicals, both household and commercial, can give a variety of patinas. They are often used by artists as surface embellishments either for color, texture, or both. Patination composition varies with the reacted elements and these will determine the color of the patina. For copper alloys, such as bronze, exposure to chlorides leads to green, while sulfur compounds (such as 'liver of sulfur') tend to brown. The basic palette for patinas on copper alloys includes chemicals like ammonium sulfide (blue-black), liver of sulfur (brown-black), cupric nitrate (blue-green) and ferric nitrate (yellow-brown). For artworks, patination is often deliberately accelerated by applying chemicals with heat. Colors range from matte sandstone yellow to deep blues, greens, whites, reds and various blacks. Some patina colors are achieved by the mixing of colors from the reaction with the metal surface with pigments added to the chemicals. Sometimes the surface is enhanced by waxing, oiling, or other types of lacquers or clear-coats. More simply, the French sculptor Auguste Rodin used to instruct assistants at his studio to urinate over bronzes stored in the outside yard. A patina can be produced on copper by the application of vinegar (acetic acid). This patina is water-soluble and will not last on the outside of a building like a 'true' patina. It is usually used as pigment.

Patina is also found on slip rings and commutators. This type of patina is formed by corrosion, what elements the air might hold, residue from the wear of the carbon brush and moisture; thus, the patina needs special conditions to work as intended.

Patinas can also be found in woks or other metal baking dishes, which form when properly seasoned. The patina on a wok is a dark coating of oils that have been burned onto it to prevent food sticking. Steaming foods or using soap on a wok or other dishware could damage the patina and possibly allow rust.

Knife collectors that own carbon steel blades sometimes force a patina onto the blade to help protect it and give it a more personalized look. This can be done using various chemicals and substances such as muriatic acid, apple cider vinegar, or mustard. It can also be done by sticking the blade into any acidic vegetable or fruit such as an orange or an apple.

Patina Farms

Repatination[edit]

In the case of antiques, a range of views are held on the value of patination and its replacement if damaged, known as repatination.

Preserving a piece's look and character is important and removal or reduction may dramatically reduce its value. If patination has flaked off, repatination may be recommended.^[15] Appraiser Reyne Haines notes that a repatinated metal piece will be worth more than one with major imperfections in the patina, but less than a piece still with its original finish.^[15]

See also[edit]

References[edit]

1. ^ ^abEuropean Geosciences Union. General Assembly; Přikryl, Richard; Smith, Bernard J.; Geological Society of London (2007). Building Stone Decay: From Diagnosis to Conservation. Geological Society. pp. 295–. ISBN978-1-86239-218-2. Retrieved 26 September 2012.
2. ^'Finish issues with regard to copper sinks'. October 2010.
3. ^Edmonds, Mark (2 June 1997). Stone Tools and Society: Working Stone in Neolithic and Bronze Age Britain. Psychology Press. pp. 192–. ISBN978-0-415-21449-0. Retrieved 26 September 2012.
4. ^Neuendorf, K.K.E., J.P. Mehl, Jr., and J.A. Jackson, J.A., eds. (2005) Glossary of Geology (5th ed.). Alexandria, Virginia, American Geological Institute. 779 pp. ISBN0-922152-76-4
5. ^Twidale, C.R., and J.R. Vidal Romani (2005) Landforms and Geology of Granite Terrains. A.A. Balkema Publishers Leiden, The Netherlands. 330 pp. ISBN0-415-36435-3
6. ^Oxidation Reaction: Why is the Statue of Liberty Blue-Green? Engage Students in Engineering; www.EngageEngineering.org; Chun Wu, Ph.D., Mount Marty College; Funded by the National Science Foundation (NSF) under Grant No. 083306. https://web.archive.org/web/20131025094519/http://www.wepanknowledgecenter.org/c/document_library/get_file?folderId=517&name=DLFE-2454.pdf
7. ^Fitzgerald, K.P.; Nairn, J.; Atrens, A. (1998). 'The chemistry of copper patination'. Corrosion Science. 40 (12): 2029–2050. doi:10.1016/S0010-938X(98)00093-6.
8. ^Application Areas: Architecture - Finishes – patina; http://www.copper.org/applications/architecture/finishes.html
9. ^Glossary of copper terms, Copper Development Association (UK): 'Archived copy'. Archived from the original on August 20, 2012. Retrieved September 14, 2012.CS1 maint: archived copy as title (link)
10. ^Berg, Jan. 'Why did we paint the library's roof?'. Archived from the original on 2007-06-25. Retrieved 2007-09-20.
11. ^Architectural considerations; Copper in Architecture Design Handbook, http://www.copper.org/applications/architecture/arch_dhb/fundamentals/arch_considerations.htm
12. ^Peters, Larry E. (2004). Preventing corrosion on copper roofing systems; Professional Roofing, October 2004, http://www.professionalroofing.net
13. ^Nordic Embassies Berlin : Architecture Information, http://www.e-architect.co.uk/berlin/scandinavian_embassies.htm
14. ^Novak, Mark. 'Anvil 093: 1891 Mosin/Nagant , Dragoon and Rifle'. YouTube. Retrieved 15 January 2021.
15. ^ ^abGaffney, Dennis (May 19, 2009). 'What 'Patina' Really Means'.

Further reading[edit]

• Angier, R.H. : Firearm Blueing and Browning, Onslow County 1936.
• Fishlock, David : Metal Colouring, Teddington 1962.
• Hiorns, Arthur (1907). Metal Colouring and Bronzing. London.
• Hughes, Richard; Rowe, Michael (1995). The Colouring, Bronzing and Patination of Metals. London: Thames & Hudson Ltd. ISBN978-0-500-01501-8.
• LaNiece, Susan; Craddock, Paul : Metal Plating and Patination: Cultural, Technical and Historical Developments, Boston 1993.
• Pergoli Camopanelli, A. : The value of patinaon the antiques market – Affinities and relationships between conservation theories and buyers' taste: NEWS IN CONSERVATION, (31), 2012.
• Sugimori,E. : Japanese patinas, Brunswick 2004.

External links[edit]

• 'Patina' . Encyclopædia Britannica. 20 (11th ed.). 1911.

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