Automotive Silicone Products

Engineered Materials for Performance, Durability, and Safety

From under-the-hood components to advanced driver assistance systems, today’s vehicles demand materials that can handle heat, vibration, chemicals, and wear.

At InterSil, we specialize in custom silicone products for the automotive industry — formulating materials built to withstand the toughest driving conditions and manufacturing specs.

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Custom Formulations for Automotive Applications

Thermal Resistance

Performs reliably across wide temperature ranges — ideal for engines, underhood components, and EV power systems.

Chemical & Fluid Resistance

Stands up to oils, coolants, fuels, and road chemicals without degrading or swelling.

Compression Set Resistance

Maintains sealing force over time, even in dynamic or high-pressure environments.

Vibration Dampening

Absorbs shock and reduces noise for smoother, quieter vehicle operation.

Applications

Our custom silicone materials are trusted across a wide range of automotive systems:

Gaskets and Seals

Our silicone products are used to produce durable seals and gaskets that maintain flexibility and performance under high pressure, heat, and vibration — delivering long-term reliability for engines, lighting, doors, and transmissions.

Wire and Cable Insulation

InterSil’s custom products provide superior electrical insulation and thermal resistance, protecting wires and cables from heat, abrasion, and chemicals — ideal for internal combustion and electric vehicles alike.

Vibration Dampening Components

Our silicone materials offer excellent shock absorption and resilience, helping reduce mechanical wear and improve ride quality by minimizing vibration, road noise, and harshness (NVH).

Thermal Insulation and Gap Fillers

Formulated for high-heat environments, our compounds provide thermal protection and gap filling in underhood systems, EV battery packs, and powertrain electronics.

Protective Coatings for Sensors and Electronics

We offer high-performance coatings that safeguard automotive electronics from moisture, temperature swings, and debris — without adding excess weight or compromising signal integrity.

Potting and Encapsulation for Automotive Modules

Our silicone products protect ECUs, sensors, and control modules through encapsulation — providing long-lasting resistance to heat, vibration, and harsh environmental exposure.