A Quick Guide to EMI Shielding Gaskets: Applications, Materials & Design Tips
What is an EMI shielding gasket?
Electromagnetic interference, or EMI, is a disturbance or unwanted signal caused by electromagnetic emissions that can interfere with other electrical devices.
When devices are left unprotected, EMI can result in equipment failure, so it is important to manage it with EMI shielding gaskets, which can come in the form of conductive gaskets. These shielding products provide electrical conductivity across a gasket-flange interface.
How EMI shielding gaskets work
EMI shielding gaskets help contain internal EMI while also blocking external interference by maintaining an electrically conductive seal around an enclosure, ensuring that equipment performs consistently and reliably.
At SRP, we manufacture high quality EMI gaskets using the latest and most sought after materials on the market. We are focused on meeting and anticipating our customers’ needs by providing them with top quality EMI shielding products.
Considerations for choosing EMI gasket materials
Emission spectrum: EMI gaskets provide different levels of shielding effectiveness across different frequency ranges. Know the radiated emission spectrum of the equipment on which it will be used and the specifications it must meet.
Operating environment: Depending on the material, an EMI gasket can also be designed to protect against the environment, such as extreme temperatures, moisture and solvents. If the incorrect materials are used for the gasket’s environment, the performance and lifespan of the gasket can be severely affected.
Mechanical design: The main goal of an EMI shield is to seal an electronic enclosure in order to prevent electromagnetic interference. Mechanical design must be considered in order to properly pair an EMI gasket with the flanges of an electronic enclosure.
Top applications for EMI gaskets
EMI gaskets for sensitive electronics are found across a broad range of applications. Essentially, they are used where electromagnetic interference may cause performance issues in a piece of equipment.
These applications can include:
- Automotive control systems
- Avionics
- Communications systems
- Computers
- High-speed electronics
- Indoor/Outdoor cellular/mobile base stations
- Medical electronics
- Military electronics
- Shielded connector seals
Let us manufacture your EMI gasket
At SRP, our extensive knowledge of EMI materials and preferred partnerships with top-tier brands makes all the difference. We routinely convert materials like BISCO® EC-2130 and conductive fabric-over-foam tapes like 3M™ 5113 Series in our U.S. facility, ensuring a high-performance gasket that protects sensitive components from damage.
Upload your specifications using our online form. We’ll get you a fast, accurate quote.