842UR is a 1-part, heat-cured, silver polyurethane coating. It is a smooth, flexible coating that provides excellent electrical conductivity at a low film thickness. It maintains flexibility at low temperatures, provides exceptional adhesion to a wide variety of substrates, and provides excellent environmental stability.

842UR is designed for large volume board-level or package-level EMI shielding applications. It can replace traditional metal lid, which reduces cost, board thickness, and mass.

Features and Benefits
  • Provides superior EMI shielding
  • Surface resistance of 0.0080 Ω/sq at 25 µm
  • Resistivity of 1.5 x 10-4 Ω·cm
  • Excellent toughness and adhesion
  • Stable under extreme environmental conditions (100 hours at 150 ˚C, 100 hours at 85 ˚C/85% R.H.)
  • Withstands wave solder
  • Designed for robotic spray applications
Catalog Number         Size         Packaging     
842UR-12ML 12 mL (0.40 fl oz) Jar
842UR-150ML 150 mL (5.07 fl oz) Can
842UR-850ML 850 mL (1.79 pt) Can
842UR-3.6L 3.60 L (3.80 qt) Can

Safety Data Sheet
Technical Data Sheet