Zinc phosphate coating protects iron, steel parts from heat

The MICROLOK® MZN finish from Birchwood Technologies is a fine-grained zinc phosphate coating for iron and steel components. It provides protection up to 1,400 degrees F for high-heat applications in which break-in lubricity is critical, such as pistons, rotor and calipers, and machined components.

The 20-min. coating process comprises five steps, making it suitable for in-house finishing. The coating is safe to apply at a temperature of 140 to 160 degrees F with no boiling or splattering, and bath maintenance requires a simple procedure to monitor the concentration.

The coating is suitable for parts that do not require a dark black finish but need corrosion protection.