Custom Silicone Products for High-Performance Applications
Engineered silicone materials for aerospace, medical, food-grade, and industrial use.
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silicone order sizes.
We're located in
Santa Fe Springs, California
At InterSil, we specialize in custom silicone products — formulating high-performance materials to meet the demanding standards of your industry. With decades of experience and a deep understanding of elastomer chemistry, we manufacture silicone products that perform in extreme environments, meet regulatory requirements, and help you build better products.
Featured Products
Engineered for performance. Built for your process.
At InterSil, our capabilities go beyond formulation — we deliver precision-engineered silicone products designed to meet demanding industry standards. From custom compounding to finished materials, explore how we support your manufacturing, performance, and compliance goals.
Solid Silicone Sheeting
Reliable performance across industries.
Engineered for durability and resistance to extreme conditions, our solid silicone sheets offer consistent performance in high-temperature and high-pressure environments.
Fabric Coated Silicone
Strength meets flexibility.
Reinforced with premium fabrics, these silicone sheets deliver enhanced tear resistance and dimensional stability — ideal for demanding mechanical and industrial uses.
Molded Silicone Sheets
Available in both solid and sponge formulations, our molded silicone sheets are designed for complex geometries, cushioning, and sealing with excellent compressibility.
Silicone Compounds
Tailored formulations, proven results.
From high-purity medical grades to flame-retardant variants, our silicone compounds are customized to meet the unique performance specs of your application.
Custom Silicone Products
You design it. We mold it.
Whether you need a proprietary blend, an unusual shape, or specialized durometer — we develop custom silicone solutions to bring your vision to life.
Industries We Serve
Our products are trusted across a wide range of mission-critical industries.

Aerospace

Automotive

Construction

Medical
Silicone formulations for safe, sterile use.

Food Grade

Military
Serving Customers Across the U.S.
INTERSIL’s mission is to add a pleasing touch to everyday life by empowering people, businesses and entire industries with top-quality silicone materials and products that help us navigate the world.
