Bonderized steel, also referred to as paint grip steel, is galvanized steel that has been put through a phosphate bath and a chromate dry. ... Bonderized material should be immediately painted after installation as the exposed phosphate coating is prone to white rust.

Do you need to prime Bonderized metal?

You do NOT need to apply a primer coat to Bonderized. Simply clean the surface and apply a finish paint. You have to clean, dry, etch, and apply a primer coat prior to painting galvanized. Bonderized steel will cost about 20 percent more than galvanized steel.

What does Bonderized steel look like?

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 ".