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 |
(unfilled) |
|
|
.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: |
|
Monel:
Aluminum |
|
QQ-N-281
QQ-A-250 |
|
Solid Silicone:
Fluorosilicone |
per
|
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 |
|