Bonderized steel, also referred to as paint grip steel, is galvanized steel that has been put through a phosphate bath and a chromate dry. This process produces the dull grey color characteristic of paint grip galvanized steel which provides an excellent "primer" for painting applications. Bonderized material should be immediately painted after installation as the exposed phosphate coating is prone to white rust. In a continuous, controlled process, coils of galvanized steel are first thoroughly cleaned and rinsed. A conditioning agent is then applied to promote the formation of a fine crystalline zinc phosphate coating.

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Bonderized steel is actually Galvanized G90 that has been put through a phosphate bath and has a layer of Chromate applied and dried leaving it ready to accept paint. The process produces a dull gray colored finish.

Bonderized is commonly referred to as " Paint Grip ". It is meant to be painted and it holds paint quite well and is popular in the rainwater goods industry. Typical uses are, rain gutters, downspouts, roof flashings, and roof valleys.

In recent years architects have used Bonderized for roofing and siding without applying a paint to the steel. This is done to achieve a beautiful dull gray weathered look. These are painted products designed to look like a dull gray weathered product. See the home page of this website for more info.

Matching trim, flat stock, and fasteners are also available. Buy Direct From Manufacturer. Home Owners Welcome. Any Size Order. Call today: or email us at sales bonderized. Route Trucks Servicing all of the U. AND Canada. Request A Quote. Request Color Chip. What is Bonderized Steel?

When the material arrives on the jobsite it cannot get wet. If moisture gets into a tightly stacked bundle and sits there it will cause white rust. Scratches easily. Watkins St. Phoenix, AZ Request A Color Chip.



Parkerizing is a method of protecting a steel surface from corrosion and increasing its resistance to wear through the application of a chemical phosphate conversion coating. Parkerizing is usually considered to be an improved zinc or manganese phosphating process, and not to be an improved iron phosphating process, although some use the term parkerizing as a generic term for applying phosphating or phosphatizing coatings that does include the iron phosphating process. Bonderizing , phosphating , and phosphatizing are other terms associated with the Parkerizing process. Parkerizing is commonly used on firearms as a more effective alternative to bluing , which is an earlier-developed chemical conversion coating.


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