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Compashield®: Advanced EMI Shielding Gaskets for Optimal Protection

Compashield EMI shielding gaskets offer a comprehensive range of molded and extruded solutions tailored for EMI protection.

Compashield specializes in creating custom-shaped gaskets, including cans, frames, tubes, sheets, and components, all designed to meet the stringent requirements of today's electronic devices.

Compashield®

Superior EMI Shielding with Conductive Gasket Technology

Compashield is our own brand for molded and extruded EMI shielding gaskets in the form of cans, frames, tubes, sheets and components. The technique involves 2K-molding and over-molding, as well as extruding electrically conductive silicone rubber into a precise size and shape. The cross-section can be rectangular, solid or hollow in various shapes and dimensions.

Compashield logo

Enhanced Performance and Durability of Compashield® EMI Gaskets

Better compression set >30%

Ensures lasting performance and durability, maintaining its shape and effectiveness over time, significantly reducing the need for replacements and maintenance.

Lower compression force >20%

Requires less pressure to achieve an optimal seal, making it easier to install and reducing stress on components, thus extending the lifespan of both the gasket and the assembly.

Twice the tensile strength

Offers enhanced durability and resistance to tearing and damage during installation and operation, ensuring a reliable seal and protection against environmental factors.

Electrical resistance improved by 50%

Provides superior insulation and protection against electrical interference, enhancing device performance and safety in critical applications.

EMI gasket designed for the future

Crafted with cutting-edge materials and technology to meet the evolving demands of industries, ensuring compatibility with next-generation devices and applications.

Compashield product

Matrix and downloads

Download our 2.0 Compashield brochure

Compashield material matrix & datasheets

Test Procedure Unit 8604 8630 8633 8641 8650 1540 8605 8642 8648 8651
Elastomer base Silicone Silicone Silicone Silicone Silicone Silicone Silicone Silicone Silicone Silicone
Conductive filler Ag/Cu Ag/Glass Ag/Glass Ni/C Ag/Al N/A Ag/Cu Ni/C Ni/C Ag/Al
Production process Molding Molding Molding Molding Molding Extrusion Extrusion Extrusion Extrusion Extrusion
Hardness ISO 48-4 Shore A 55 70 55 55 50 50 78 80 80 80
Volume resistivity Mil-DTL 83528C m0hmcm 3 2 9 30 7 N/A 2 17 6 4
Flammability UL94 N/A N/A N/A V1 N/A V0 N/A V0 V0 V0
Material safety datasheets Ag_Cu  Ag_Glass  Ag_Glass  Ni_C  Ag_Al  Rubber  Ag_Cu  Ni_C  Ni_C  Ag_Al 

Compashield® Sponge

Extruded EMI shielding gasket

Compashield® Sponge is an extruded EMI shielding gasket within the Compashield® product family. It features a sponge core and a conductive EMC outside layer.

The unique properties of the core prevent the gasket from collapsing, ensuring reliable and consistent EMI shielding performance. The flexible and easily compressible design allows it to accommodate large mechanical tolerances while maintaining effective electromagnetic interference (EMI) protection.

Compashield® Sponge is typically delivered as O-rings.

Key features and benefits

  • Excellent shielding effectiveness
  • Flexible and easily compressible
  • Soft material with good compression set
  • No collapsing corners
  • Excellent aging properties
  • High operating temperature capability
  • Accommodates large mechanical tolerances
  • Provides reliable EMI shielding contact

Accelerated life testing

Compashield® Sponge performance has been evaluated after accelerated life testing under defined environmental conditions.

The tests were performed at different conditions (see table below).

Fresh-0h/cycles 500h/300 cycles 1000h/600 cycles

Accelerated aging conditions 

0-20 GHZ

20-40 GHZ

0-20 GHZ

20-40 GHZ 

0-20 GHZ

20-40 GHZ 
Temperature cycling -40oC - +125oC 115 100 92 100 90 100
+125oC 115 100 98 100 98 100
+85C/85%RH  115 100 93 99 87 95

Compashield® multilayer

EMI Shielding & Environmental Sealing Gasket

Compashield® Multilayer is an extruded gasket designed to combine high-performance EMI shielding with reliable environmental sealing in a single integrated gasket solution.

The multilayer construction consists of a non-conductive silicone core and two conductive EMC outer layers. By integrating reflection and absorption within the layered structure, it delivers high shielding effectiveness while ensuring reliable electrical contact in demanding electronic applications. 

Key features and benefits

  • Shielding effectiveness above 90 dB after 600 temperature cycles
  • Excellent aging performance
  • Dual conductive EMC layers combining reflection and absorption
  • High operating temperature capability
  • Robust design for demanding environments
  • Very good expected PIM performance
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Production and partners

Production center and production partners

An EMC production partner is a manufacturer licensed by Nolato to use our materials and technologies for large-scale production, with ongoing support from Nolato Silikonteknik. This support extends all the way from research and development to quality control. Today we have numerous EMC production partners for our Trishield® products and manufacturing around the world, with a primary focus on Asia. We work with a growing number of partners and welcome experienced companies to join us.

Find your EMC sales representative and agency
SMT-EMI-Pad products

Compashield® SMT Pad: Enhancing Connectivity with EMI Shielding Gaskets

The Compashield SMT Pad is used as a grounding contact on printed circuit boards commonly used in the electronics industry and anywhere high electrical conductivity is needed in a compressible, resilient form, e.g. (mobile phones, base-stations, power amplifiers, laptop computers, PDAs, cameras & radar systems, infotainment systems, etc.).

Features and Benefits of Compashield® SMT Pad

The Compashield SMT Pad stands out for its flexibility and compressibility, capable of accommodating tolerances and closing gaps between PCBs and other components. This not only provides a reliable grounding contact but also enhances the device's overall EMI protection.

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