Factory Pre-Patinated Copper

Application Data Sheet – Copper Alloys

Factory Pre-Painted Copper

Factory Pre-Patinated Copper Building

The natural weathering of copper from its bright pink to the characteristic blue-green colour (patina) is a direct consequence of its reaction to the corrosive action of the atmosphere. In industrial and marine atmospheres, the natural patina generally forms in 5 to 7 years. In rural atmospheres, with relatively clean air patina formation may occur in 10 to 14 years. In arid desert environments, the patina formation may never occur and the copper surface may remain a dark brown or bronze colour.

The large number of requests by the architectural community for a man-made patina has prompted copper mills to research and develop pre-patinated copper sheet products. The patina is a chemical conversion process whereby the top molecular surface of the copper sheet is enhanced and forced to produce a natural patina.

Since some of the pre-patinated sheets have a variation in their final colour, it is recommended that the architect review material samples before final specifications. Please contact Austral Wright Metals for details of Factory Pre-Patinated Copper Architecture .

Pre-Patinated Copper Roofing Pre-Patinated Copper Architecture Pre-Patinated Copper Architecture Pre-Patinated Copper Architecture Factory Pre-Patinated Copper Architecture
Factory Pre-Patinated Copper Architecture Factory Pre-Patinated Copper Architecture Factory Pre-Patinated Copper Architecture
Factory Pre-Patinated Copper Architecture Factory Pre-Patinated Copper Architecture Factory Pre-Patinated Copper Architecture
Factory Pre-Patinated Copper Architecture Factory Pre-Patinated Copper Architecture
The technical advice and recommendations made in this Product Data Sheet should not be relied or acted upon without conducting your own further investigations, including corrosion exposure tests where needed. Please consult current editions of standards for design properties. Austral Wright Metals assumes no liability in connection with the information in this Product Data Sheet. Austral Wright Metals supplies a comprehensive range of stainless steels, copper alloys, nickel alloys and other high performance metals for challenging service conditions. Our engineers and metallurgists will be pleased to provide further data and applications advice.
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