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Master Bond adhesives
Parker Chomerics CHO-SHIELD® 576 Platable Silver Epoxy Coating
Categories: Polymer; Adhesive; Thermoset; Epoxy

Material Notes: Description: CHO-SHIELD® 576 coating is a two component, silver filled, highly conductive epoxy paint designed to provide EMI shielding when applied to a dielectric plastic substrate. This coating was specifically developed as a variant of CHO-SHIELD® 596. CHO-SHIELD® 576 dries to the touch in less than 1 hour at room temperature and attains full chemical resistance after 1 week at room temperature. However, the best electrical properties are achieved by curing at elevated temperatures.

Performance: CHO-SHIELD® 576 is first sprayed onto plastic substrate, and further plating operations may follow. The full stack up of plating and coating will meet strict adhesion requirements, equivalent to ASTM D3359 with a rating of 5A after exposure to 95% RH at 65°C for 24 hours and thermal cycling from one hour at -57°C to one hour at 95°C for a total of four cycles.

Information provided by Chomerics

Vendors:
Available Properties
  • Specific Gravity
  • Hardness, Shore D, ASTM D676
  • Volume Resistivity, [ohm/sq], followed by 1 hour at 121°C
  • Cure Time, and 1 hour at 121°C
  • Cure Time, and 6 hours at 65.5°C
  • Cure Time, and 45 minutes at 65.5°C, followed by 45 minutes at 98.8° C (recommended)
  • Cure Time
  • Pot Life
  • Shelf Life
  
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Manufacturer Notes:
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Category Notes
Plastic

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