Advanced technology, high quality products
and in-depth application expertise combine
to provide cost effective solutions
to EMI/RFI shielding challenges.

Foil Shield and Seal
Foil Shield and Seal is a thin sheet EMI/RFI gasket material that consists of a thin expanded metal foil with the openings filled with solid silicone elastomer. This material has very uniform thickness and can be routinely cut into high frequency connector gaskets or piping gaskets with standard tooling. It is also amenable to custom shapes as indicated in the illustration below.

Foil Shield and Seal for conductive shields and environmental seals
Shielding Express Foil Shield and Seal gaskets are available with or without a pressure seal. The basic EMI/RFI shielding material consists of a severely expanded, diamond-pattern-cut Monel sheet with more than 200 contact points per square inch of mating surface area. The material was developed for use where mating surfaces may be uneven with a tolerance up to .003". When an environmental seal is required, the shielding gasket can be provided with openings filled with 40 duro solid silicone elastomer. Recommended compression forces are greater than 30 PSI. Fluorosilicone is utilized in place of the silicon elastomer when solvent resistance is required.

Mechanical Specifications:


.020" thk x 8.00" wide

  .020" thk x 8.00" wide (filled)
  .030" thk x 8.00" wide (unfilled)
  .030" thk x 8.00" wide (filled)
  .030" thk x 8.00" wide (filled) (Aluminum Sheet)

Material Specifications:


  Solid Silicone:
ZZ-R-765 Class 2, Grade 40 Color: Gray
MIL-R-25988B, Color blue

Typical Shielding Effectiveness:

  14 KHz  (Magnetic field)  40 dB
  1.0 MHz  (Magnetic field)  50 dB
  18.0 MHz  (Electric field)  100 dB
  1.0 GHz  (Plane Waves)  90 dB

Temperature Range:


Filled gasketing -80 degrees to +500 degrees F


 Product Categories
I Shielded Optical Windows I
 I Oriented Wire Shield and Seal I Foil Shield and Seal
Woven Shield and Seal
 I Thermally Conductive Materials I
  I Frame Shield
 I Knit Shield I Knit Shield and Seal I Knit Shield Wrap I
  I Particle Filled Conductive Silicone Gasketing I Shielded Air Ventilation Panels I

I Shielded Screen Filter Ventilation Panels I Conductive Caulking & Adhesives I
  I Knit Shield Ring and Contact Buttons I

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Shielding Express Inc.
29 Mozzone Blvd. • Taunton, MA 02780 USA
Tel: (508) 880-0987 • Fax: (508) 880-0334