EMI Gaskets
National Power & Signal specializes in precision die cutting
technologies, modern press equipment and state of the art dies,
fixtures, and tooling is used to produce standard and custom die cut
gaskets.
An electrically conductive pressure sensitive adhesive is available
as an option for all die cut EMI gaskets. National Power & Signal
has developed and formulated a process of producing and applying the
PSA onto the gasket that is
environmentally friendly and very economical for the end user. The
electrically conductive pressure sensitive adhesive is available for
all industrial applications for compounds that are Nickel Graphite,
Nickel, Silver Plated Glass, Silver Plated Nickel, Silver, Silver
Plated Aluminum Silver Plated Copper and Oriented Wires in silicone.
The electrically conductive pressure sensitive adhesive can also be
applied to fluorosilicone compounds
depending on the specific application and service requirements of
the EMI gasket.
Also manufactured are custom O-rings. A method of vulcanization has
been developed by National Power & Signal that allows for very high
volume manufacturing and an exceptionally low defect rate. Custom
O-rings are available using all of the standard conductive fillers
offered by National Power & Signal, however it should be noted that
the most common and most cost effective for a wide range of
applications is Nickel Graphite in silicone.

Custom Shielded Enclosure Military Application
Shielding to 40 GHz case material Aluminum and Stainless
Steel Custom EMI gasket 18" X 23" (blue)
is Fluorosilicone with Silver/Aluminum
Shock absorbers for internal housing one in each corner Main design
requirements - weather proof - shock resistant
and EMI/RFI shielding effectiveness to 40GHz.

Conductive O-ring gaskets used in a large RF transmitter/receiver
system integrated with an antenna. The
material is Nickel Graphite in silicone. Several sizes of the O-ring
gasket were used by the customer for different series of product.
The O-rings are 9” 14” and 22” in diameter. Both hollow and solid
profiles were used.

Precision die cut EMI gasket using Carbon in silicone with PSA.
The application was for a commercial marine sonar
system.
Conductive silicone elastomer gaskets
manufactured by National Power and Signal for use in an RF amplifier
application. Specific customer design requirements included extreme
environmental
operating conditions combined with effective EMI shielding
capabilities.
Environmental gaskets and seals are
manufactured using variations of solid and sponge silicone rubber.
Fluorosilicone rubber is also available.
Vent Panels designed and manufactured to allow
sufficient airflow while eliminating radiated emissions. Specific
cell sizes are used to meet application and shielding requirements.
National Power and Signal copper foil 1.4
mil (36 micron) for EMI shielding. The copper foils are a premium, zero temper, high tensile
copper with electrically conductive PSA (pressure sensitive adhesive). Various sizes and custom die-cut shapes are available.
National Power And Signal introduces a line of electrically conductive
silicon product in sheet and roll form available with electrically
conductive pressure sensitive adhesive (PSA). The application of an
electrically conductive adhesive with a
release liner on to an electrically conductive elastomer compound that
can be die cut to form any type of gasket configuration is a very
viable and attractive solution in medium and high volume assembly
operations.
The material is soft and has excellent shielding properties.
Product applications include RF/Microwave assemblies and related
communications systems and products that require an electrically
conductive gasket for EMI/RFI shielding
combined with an environmental seal.
For additional information contact:
National Power And
Signal.
National Power And Signal a manufacturer of EMI shielding gaskets
for North American OEM's
now offers a complete line of conductive O-rings. The compounds
used to produce the electrically conductive O-ring product have proven
to be exceptionally cost effective to produce and offers the end user a
very economical solution for providing effective EMI shielding and an
environmental seal for enclosures that are designed for out door use
such as amplifiers, transcievers and antenna ODU assemblies.
For additional information contact:
National Power And
Signal.
Oriented
Wire in Silicone
National Power and Signal
offers EMI gaskets utilizing Oriented Wires in Silicone. The gaskets
are used in low closure force applications and provide excellent
shielding and environmental protection. Applications include industrial
cabinets and enclosures that require re-entry doors, hatches etc. The
material is available with optional PSA (pressure sensitive adhesive).
Gaskets are available for all standard size cabinets and enclosures.
Custom configurations are also available.
Thermal Interface Components
National Power and Signal
manufactures thermal interface components for all
power semiconductor, microprocessor, DC to DC converter and
related semiconductor applications that require a thermal transfer
material between the semiconductor device
mounting surface and the heatsink.
For additional information contact:
National Power and
Signal or 866-775-7715.
- Die cut conductive silicone elastomer gaskets
- Carbon filled silicone elastomers
gaskets
- Silver-copper filled silicone elastomers
gaskets
- Silver-aluminum filled silicone elastomers
gaskets
- Nickel-graphite filled silicone elastomers
gaskets
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- Oriented wire in silicone rubber
- Oriented wire in silicone sponge
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- EMI Air vent panels
- Shielded Windows
- EMI Connector gaskets
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- Conductive foils with conductive PSA
- Copper/Aluminum
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- Conductive fabrics and Yarns
- Conductive fabric over foam
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- Thermal interface materials for heatsink applications
- Non-conductive environmental gaskets and seals
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- Waveguide Gaskets for microwave assemblies and
integrated antenna systems
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- Nickel-graphite filled silicone elastomers
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- Custom power line filter assemblies for three phase and
single applications
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- Shielding components for wire, cable assemblies and
interconnect systems
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- Custom feed-thru filter plates and assemblies
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