Anodize Nickel Test
August 17, 2017
When extreme hardness is required for aluminum building components, such as in high-traffic areas, like entranceways and railings, an AAMA 611-14 anodized aluminum finish should be specified.
The hardness of anodized aluminum rivals that of the diamond.
This “Nickel Test” demonstrates why a Class I high-performance anodize coating is the perfect choice for exterior architectural applications.
Architectural Class I Anodize
Class I anodize is used on the exterior of architectural projects. It has a higher mil thickness than Class II anodize; it is more resistant to salt spray and the sea coast; and it is more durable in high traffic areas.
Class I anodize, with a minimum mill thickness of 0.7 (18 microns), can be a suitable choice for coastal climates as it possesses exceptional resistance to corrosion, discoloration and wear; however, its natural beauty can be marred by harsh chemicals, rough conditions or neglect. These conditions may only affect the surface finish and not reduce the service life of the aluminum, but mortar, cement, and other alkaline materials will quickly corrode an anodize finish if allowed to dry on the metal surface.
Class I anodize meets or exceeds all requirement of AAMA 611 “Voluntary Specification for Anodized Architectural Aluminum.
Linetec utilizes a more eco-friendly etching method within the anodizing process. Eco friendly anodize improves the finishes ability to hide small defects in the the aluminum and works exceptionally well with recycled billet. ;
Copper anodize offers the look of rich, real copper without such shortcomings as salt run-off stains, galvanic corrosion and patina. This unique and consistent process involves using actual copper to color the aluminum while isolating the copper in the coating.
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