Manufacturer of World Class Machined and Plated Products

Zinc Phosphate Coating

Greystone is highly skilled in the application of Zinc Phosphate coatings across diverse industries, dedicated to protecting ferrous metal parts from wear and corrosion. Our technically sound and proven coating processes provide exceptional quality, endurance and reliability to your components throughout their operational lifespan.

We pride ourselves on our vertical integration, complementing our Zinc Phosphate services with a range of operations such as Tumbling, Blasting, Oiling, and Baking. This integration allows us to offer comprehensive turnkey solutions tailored to multiple applications.

At Greystone, efficiency is paramount. Our high-volume coating lines are equipped to handle both Rack & Barrel plating, facilitating large-scale production capabilities with quick turnaround times.

Advantages of Zinc Phosphate Coatings

  1. Corrosion Protection: Zinc phosphate coatings provide excellent corrosion resistance, protecting the metal substrate from rust and other forms of corrosion.
  2. Lubricity: Zinc phosphate can act as a solid lubricant, reducing friction and wear on metal parts. This is particularly beneficial in applications where metal-on-metal contact occurs, such as in automotive components or machinery.
  3. Paint Adhesion: The surface texture created by zinc phosphate promotes better paint adhesion. This is especially useful in industries like automotive manufacturing, where paint quality and durability are critical.
  4. Oil Retention: Zinc phosphate coatings can retain oil or other lubricants within their porous structure, providing additional lubrication for moving parts. This property is valuable in applications where continuous lubrication is required.
  5. Improved Wear Resistance: The presence of zinc phosphate can improve the wear resistance of metal parts, increasing their longevity and reducing maintenance requirements.

Zinc Phosphate Specifications:

MIL-DTL-16232, ASTM F1137, AMS 2480, TT-C-490, WSD-M3P35 and more.

Additional Capabilities

  • Blasting
  • Oiling
  • Tumbling
  • Hydrogen Embrittlement Relief
  • Coating Weight Measurement
  • Precision Masking
  • Salt Spray per ASTM B117
  • Baking


  • IATF 16949
  • ISO 13845
  • ISO 9001
  • FAA Repair Station

Contact Us for Your Phosphating Needs

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