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CHO-SHIELD 579 Electrically Conductive Low Volatile Organic Content (VOC) Silver Epoxy EMI Coating

Brand: Chomerics

Parker Chomerics CHO-SHIELD® 579 EMI coating is a two-component, Ag filled conductive epoxy that adheres well to chemical resistant plastic and provides the added benefit of low volatile organic compounds (VOCs). 

CHO-SHIELD® 579 is a silver-colored epoxy that provides an excellent moisture barrier as well as physical and chemical abrasion resistance. 

It is an ideal solution for mating silver-filled conductive elastomers to aluminum surfaces, significantly minimizing galvanic corrosion within the flange. 

It is also able to withstand extreme temperature fluctuations, high humidity, and salt fog corrosion environments while maintaining conductivity and adhesion.
Features
  • Pre-measured kit allows for easy mixing of components
  • High EMI shielding properties (>90 dB) due to pure silver flake filler
  • Low volatile organic compounds (376g/L)
  • Maintains electrical and mechanical stability in harsh environments due to epoxy polymer
  • Meets Military Spec MIL-C-22750
  • No primer required

Specifications

Brand

Color

  • Silver

Filler Material

  • Silver

Film Thickness

  • 0.025 mm

Noise Shielding Level

  • > 90 dB

Operating Temperature

  • -40° to 150° C

Package Type

  • 2 Component Kit A: 1-Pint Aluminum Can B: 4 Fluid Ounce Amber Glass Bottle

Polymer Material Options

  • Epoxy

Primer Included

  • Not Required

Ratio

  • 100:32.2 by Weight

Shelf Life

  • 9 Months

Specific Gravity

  • 1.75

Spraying Viscosity & Test Method

  • 18 to 24 seconds Zahn Cup 2

Surface Resistance

  • < = 0.060 Ω/square
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