At Qaulity Metals we’re always looking at new ways to deliver high-performance building materials for our roofing & siding partners.  A popular matte finish, known as bonderized or paint grip, is among our most popular options.

What is Paint Grip (Bonderized) Steel?

Paint grip steel, also referred to as bonderized steel, is a type of steel that has been treated with a phosphate coating. This coating enhances the steel’s ability to adhere to paint, providing a durable and long-lasting finish.

Paint Grip is pre-treated at the mill for subsequent painting in the as-received condition. The sheet goes through a phospatizing process which produces a deposit of hydrated zync on the galvanized surface, obtaining a dull gray appearance. This coating provides a good adherent base for painting, and also extends the life of the painted surface. This process consist in a layer of zinc on each side of the steel sheet that is tightly adhering to the steel thru the formation of an iron-zinc alloy bonding layer that is formed by a diffusion process while the heated steel strip is in contact with the molten zinc.

Corrosion Resistance

One of the advantages of paint grip steel is its corrosion resistance. The phosphate coating creates a barrier that protects the underlying steel from rust and corrosion, even in harsh environments.

Building Uses

Paint grip steel is incredibly versatile and can be used in a variety of applications. It is commonly used for roofing, siding, gutters, and architectural details. Its compatibility with paint makes it an excellent choice for projects that require a customized finish. With its corrosion-resistant properties and durable finish, paint grip steel offers long-lasting performance, ensuring that your construction projects remain structurally sound and visually appealing for years to come.

Ready to Learn More?

Ready to experience the benefits of paint grip (bonderized) steel for your construction projects? Contact Quality Metals today to learn more about our products and how we can support your needs. Our team is here to provide expert guidance and assistance every step of the way.