Zinc

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Zinc is an electrolytic plating process that acts as a sacrificial coating to protect the substrate from corrosion. A conversion coating of chromate can be applied after zinc plating to increase the level of corrosion resistance.

Zinc plating with chromate can also be used to improve adhesion of secondary paint operations. Threaded features benefit from zinc plating because of its anti-galling characteristics. Zinc plating with black chromate offers better corrosion resistance and anti-galling characteristics than black oxide.

The zinc plating process can be considered an excellent primer for paint surfaces, with the paint protecting the zinc, giving a lasting protection. Rust, which gets under paint films and lifts them from the steel, will be inhibited from forming because of zinc plating. Should the part require longer corrosion protection, depending on end use, zinc chromate conversion coatings are used.

Supplimentary Treatments

    Colored Conversion Treatment Non-RoHS Compliant
    • Black
      • Yellow
        • Colorless Conversion Treatment RoHS Compliant

          • Clear to Blue Hue

          Standard Specifications
          ASTM B633 Type I, II, III & V
          REACH, ELV & WEEE Compliant (Types I, III & V only)

          Performance Benefits
          Sacrificial Corrosion Protection
          Paint Adhesion
          Decorative
          Anti Galling
          Cost Effective Corrosion Resistance
          Color Identification (offer black, yellow, bluish/clear available)

          Receptive Metals
          Aluminum Alloy
          Aluminum Casting
          Steel
          Brass
          Bronze
          Copper

          Thickness
          .0001- .001”
          100-1000 uin.

          Max Part Size
          48" x 30" x 24"
          35 pounds per part

Specifications

Performance :
Adhesion, Corrosion Resistance
Material Type:
Aluminum Alloy, Aluminum Casting, Steel, Brass, Copper, Bronze