Browse Publications Technical Papers 1999-01-0901

Development of an Environmentally Friendly Corrosion Resistant Coating for Fasteners 1999-01-0901

This paper describes the work done to develop an environmentally friendly coating which provides corrosion protection to fasteners and stamped parts. It is a water based, neutral pH, VOC compliant coating that contains zinc and aluminum metal flakes in an inorganic binder system. It is free of all highly regulated heavy metals and carcinogens.
The coating can be applied by either dip-spin, dip-drain or spray coating processes, resulting in a dry film thickness of 0.3-0.4 mils (7.5-10 microns) which is silver in color. Curing of the coating utilizes conventional industrial ovens and has a wide cure window.
The structure of the coating, mechanisms of corrosion protection, and test results will be presented.


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