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EMI
Shielding Materials
1.
Fabric Over Foam Gaskets
 For outstanding
control of EMI, Schlegel Electronic Materials EMI gaskets provide the perfect fit. Made
from resilient open-cell urethane foam encased in conductive fabrics,
Schlegel Electronic Materials gaskets fit securely in even small gaps and uneven joints.
Lightweight and flexible, these EMI shielding gaskets are ideal
for a variety of applications from portable electronics units, servers
and computers to peripherals and large enclosures. Schlegel Electronic Materials EMI
shielding gaskets are non-abrasive to conductively plated
and painted surfaces, and they maintain galvanic
compatibility with a range of surfaces. Schlegel Electronic Materials gaskets
are tested with their conductive fabric to meet UL 94-VO
and HB recognitions.
Schlegel Electronic Materials offers over 120 different profiles to meet all of your
shielding needs. From standard square and rectangular to
C-fold to D-shape, L-shape, P-shape, U-shape, and more,
Schlegel Electronic Materials will design the ideal shielding gasket to meet your needs.
For easy installation Schlegel Electronic Materials gaskets are offered with, durable
self-attaching inserts, clips, push-rivets or pressure-sensitive
adhesive. Whatever the EMI shielding challenge, Schlegel Electronic Materials
has a product to meet your most stringent requirements.
Cladding
Type |
Surface Resistivity |
Shielding Effectiveness
(MIL-G-83528B from
20MHz to 10GHz)
|
Contact
Resistance
(at 1Kg/inch load)
|
Abrasion Resistance
|
Nickel/Copper
C70 |
<=0.06ohm/sq. and
CpK>=2.0 |
96dB (average) |
0.11ohm-inch |
No change in resistivity
within 800,000 cycles |
Nickel/Copper
C12 |
<=0.02ohm/sq. and
CpK>=2.0 |
97.4dB (average) |
<0.08ohm-inch |
No change in resistivity
within 1,000,000 cycles |
Silver
C2 |
<=0.5ohm/sq. and
CpK>=2.0 |
95dB (average) |
<1.0ohm-inch |
No change in resistivity
within 800,000 cycles |
Monel
Laminate M80 |
0.003ohm/sq. |
96.7dB (average, from
20MHz to 18GHz) |
0.11ohm-inch |
No change in resistivity
within 1,000 cycles |
Available conductive claddings
Foam options
All Schlegel Electronic Materials fabric-over-foam gaskets are constructed with our unsurpassed,
industry leading polyurethane foam core technology.
Within Schlegel Electronic Materials cladding portfolio C2, C70, C12, and M80, we can
select from the following foam options:
- Standard, highly resilient UL 94-HB recognized foam (gray)
- Standard, flame retardant UL 94-VO recognized foam (blue)
- Bromine-free flame retardant UL 94-VO recognized foam (blue)
Compression set
Standard UL 94-HB and Standard flame retardant UL 94-VOThe core
of Schlegel Electronic Materials EMI shielding gaskets is open-celled polyether polyurethane
foam in a high-resiliency (HB) formula. Compression set of foam
that is encapsulated is 1% at ambient temperature, and <5%
at 70deg. C (158 deg. F) when compressed 50% of free height for
22 hours.
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