Protecting Electronics with Silicone Solutions

3 min read

Protecting Electronics with Silicone Solutions


In the intricate world of electronics, where every microchip, circuit board, and wire needs to function in harmony, there exists a silent threat: electromagnetic interference (EMI). EMI is an event where electromagnetic fields disrupt the operation of electronic devices, leading to malfunctions, data corruption, and even complete system failure. Instances of your smartphone suddenly freezing, your car's navigation system going haywire, or your Wi-Fi unexpectedly dropping are a few examples of the effects of EMI. 

Electromagnetic interference can originate from several sources, both natural and manufactured. These include radio waves from a nearby cellphone tower, the radiation emitted by powerlines, or signals transmitted from other electronic devices. When these electronic fields intersect, they can induce unwanted currents or waves, disrupting regular device operation. Electronics engineers and manufacturers must add shielding components to their devices to protect them from these threats. Shielding, filtering, insulating, and grounding can protect these components from EMI/RFI disturbance. 

Electrically conductive silicone rubber is one distinct solution to shielding and grounding these unwanted interferences. This specialized material combines inherent flexibility and resilience to create an environmental barrier with enhanced electrical conductivity to create a continuous interface between mating metal components. Silicone is most commonly used as an electrical insulator rather than an electrical conductor. However, adding fillers from metal or metal-coated particles, metal wires, or wire mesh creates the necessary electrical conductivity. This is achieved through a process called dispersion, where the fillers are evenly distributed throughout the silicone matrix, creating a conductive path for electricity. 

By incorporating specific conductive fillers, silicone rubber's electrical conductivity can be customized to meet precise application requirements. This adaptability, achieved through adjusting the filler content and formulation, ensures optimal EMI control performance while maintaining desired mechanical properties and processing characteristics. This reassures you that electrically conductive silicone is highly adaptable to a wide range of applications, providing a versatile and empowering solution. Electrically conductive silicone rubber is resistant to mechanical and environmental factors such as vibration, moisture, temperature fluctuations, and UV radiation. This robustness is ideal for demanding electronic applications and ensures long-term reliability, even in harsh operating conditions. This security reduces the risk of thermally induced failure and extends the lifespan of electronic devices.

Another significant advantage of electrically conductive silicone rubber is its ability to efficiently transfer electricity while maintaining compliance with irregular surfaces and mechanical stress. Silicone is a soft, deformable elastomer that conforms closely to the uneven topography of mating parts, facilitating a sealing system that ensures intimate contact and maximum electricity conduction. This feature is particularly advantageous in compact electronic devices with limited space, such as within enclosures in components such as electrical and telecommunications equipment, electronic and medical devices, robotic end-effectors, and flat-panel displays.

As a custom gasket manufacturer, PGC is at the forefront of innovation in shielding and grounding techniques. With a highly skilled Application Engineers team, PGC is positioned to address the challenges of unwanted interference in electrical components and circuits. Our commitment to leveraging the latest advancements in material science and technology inspires us to provide cutting-edge solutions for our customers.