Silicone Gasket

Silicone gaskets provide reliable sealing performance, high-temperature stability, and long-lasting flexibility for industrial and OEM applications. These high-temperature silicone gaskets offer strong chemical resistance, low compression set resistance, and FDA-approved silicone options suitable for food-grade silicone gasket requirements.

Rubber Xperts INC manufactures custom silicone gaskets using solid silicone, silicone sponge, and silicone foam with precision die-cutting, molding, and OEM gasket manufacturing for equipment, enclosures, and high-heat machinery.

10% discount for bulk orders over $1,000

Buy Silicone Rubber Gaskets in Bulk from a Trusted
Manufacturer & Supplier, Rubber Xpert Inc.

Buy silicone rubber gaskets in bulk directly from a manufacturer that supplies certified materials, consistent quality, and OEM gasket manufacturing for industrial supply needs.

Rubber Xperts Inc supplies large-volume orders with custom molded silicone gaskets, precise die-cut options, and fast turnaround to help you meet equipment production and regulated application demands.

Solid silicone gasket high temperature sealing

Solid Silicone Gaskets

Solid silicone gaskets are engineered for high-temperature environments and applications requiring stable compression, material integrity, and long-term sealing performance. They are used where consistent barrier formation and dimensional stability are essential.

  • Applications: Food processing machinery, ovens, HVAC systems, medical devices
  • Material Type / Grade: Solid silicone (peroxide-cured or platinum-cured)
  • Temperature Range: –60°C to +230°C (260°C intermittent)
  • Hardness (Durometer): 40–80 Shore A
  • Thickness Range: 0.5mm to 25mm
  • Key Features Excellent compression set resistance, high-temperature stability, non-toxic, FDA-approved grades available
Silicone sponge gasket environmental sealing

Silicone Sponge Gaskets

Silicone sponge gaskets are engineered with a closed-cell structure that provides compressible environmental sealing, moisture resistance, and protection against vibration and thermal cycling.

  • Applications: Outdoor enclosures, electrical cabinets, LED housings, transportation equipment
  • Material Type / Grade: Closed-cell silicone sponge
  • Temperature Range: –50°C to +200°C
  • Hardness (Durometer): 10–30 Shore A (soft to medium)
  • Thickness Range: 1mm to 25mm
  • Key Features Water-resistant, lightweight, compressible, strong sealing for uneven surfaces
Silicone foam gasket vibration absorption

Silicone Foam Gaskets

Silicone foam gaskets are designed as low-density sealing components that offer cushioning, vibration absorption, and thermal insulation for lightweight or delicate assemblies.

  • Applications: Electronics, EV battery packs, lighting fixtures, industrial control panels
  • Material Type / Grade: Silicone foam (low and medium density)
  • Temperature Range: –55°C to +200°C
  • Hardness (Durometer): 5–20 Shore 00
  • Thickness Range: 1mm to 20mm
  • Key Features Vibration damping, thermal insulation, compressible, ideal for lightweight enclosures
Fluorosilicone gasket fuel chemical resistance

Fluorosilicone Gaskets

Fluorosilicone gaskets are engineered for fuel and solvent resistance, supporting applications exposed to oils, hydraulic fluids, aviation fuels, and aggressive chemicals.

  • Applications: Aerospace components, fuel systems, automotive engines, chemical processing
  • Material Type / Grade: Fluorosilicone (FVMQ)
  • Temperature Range: –60°C to +200°C
  • Hardness (Durometer): 40–80 Shore A
  • Thickness Range: 1mm to 20mm
  • Key Features Excellent fuel and solvent resistance, stable in aviation fluids, long-term durability in harsh environments
FDA-grade silicone gasket food safe sealing

FDA-grade Silicone Gaskets

FDA-grade silicone gaskets are manufactured from high-purity silicone materials that support sanitary equipment requiring food-safe, medical-grade, and contamination-controlled sealing.

  • Applications: Food processing, beverage systems, medical devices, pharmaceutical equipment
  • Material Type / Grade: FDA-compliant silicone, USP Class VI, 3A sanitary
  • Temperature Range: –50°C to +230°C
  • Hardness (Durometer): 30–70 Shore A
  • Thickness Range: 0.5mm to 20mm
  • Key Features Non-toxic, odorless, tasteless, bacterial-resistant, compliant with FDA 21 CFR 177.2600
Platinum-cured silicone gasket medical use

Platinum-cured Silicone Gaskets

Platinum-cured silicone gaskets are produced using medical-grade formulations that deliver high cleanliness, elasticity, and thermal stability for regulated and high-sanitary environments.

  • Applications: Medical equipment, biotech systems, pharmaceutical processing, high-purity food applications
  • Material Type / Grade: Platinum-cured silicone
  • Temperature Range: –60°C to +230°C
  • Hardness (Durometer): 30–70 Shore A
  • Thickness Range: 0.5mm to 20mm
  • Key Features Low extractables, superior cleanliness, high elasticity, ideal for sanitary environments
Custom die-cut silicone gasket precision sealing

Custom Die-cut Silicone Gaskets

Custom die-cut silicone gaskets are manufactured using CNC cutting, water-jet systems, or steel-rule dies to achieve tight tolerances, repeatable accuracy, and OEM-grade sealing for engineered assemblies.

  • Applications: Control panels, electronics enclosures, medical devices, custom machinery
  • Material Types: Solid silicone, silicone sponge, silicone foam, fluorosilicone
  • Temperature Range: Based on selected silicone grade
  • Hardness (Durometer): 10–80 Shore A (grade-dependent)
  • Thickness Range: 0.5mm to 25mm
  • Key Features Any shape/size possible, tight tolerances (±0.005"), adhesive backing options, suitable for OEM production

Why Buy Silicone Gaskets from Rubber Xperts Inc?

Rubber Xperts Inc uses certified silicone materials and engineering-grade manufacturing to deliver precision-cut gaskets that support reliable performance in your industrial applications.

  • ISO-Certified Silicone Manufacturing: ISO 9001 certified processes ensure consistent quality, controlled hardness, and batch-to-batch uniformity, giving you dependable silicone gasket performance across every production run.
  • FDA & Medical-Grade Silicone Options: FDA 21 CFR 177.2600, USP Class VI, and platinum-cured silicone grades available for food, medical, and pharmaceutical equipment.
  • Advanced Silicone Fabrication Capabilities: In-house die-cutting, CNC cutting, water-jet, molding, and extrusion allow us to produce complex shapes, tight tolerances, and precision-cut silicone gaskets for your assemblies.
  • High-Temperature & Chemical-Resistant Grades: Silicone materials engineered for continuous heat exposure, aggressive chemicals, environmental sealing, and demanding industrial conditions.
  • OEM Production for Equipment Manufacturers: Bulk sizing, custom formulations, branded packaging, and OEM-specific specifications support your production lines and distributor requirements.
  • Nationwide Delivery & Bulk Order Handling: Strategic facility location, efficient logistics, and volume-tier pricing make Rubber Xperts Inc a reliable nationwide silicone gasket supplier.
  • 10,000 sq. ft. Production Facility: Fully equipped with in-house die-cutting, CNC cutting, molding, and silicone fabrication lines to support high-volume and custom OEM gasket production.
Rubber Xperts INC exterior manufacturing facility in Fort Worth Texas

Your Custom Silicone Gasket Journey - From Specification to Delivery

What Are Silicone Gaskets?

Silicone gaskets are sealing components designed to create a secure barrier between surfaces, providing leak protection, transfer prevention, and vibration absorption in demanding environments.

Silicone gaskets are produced from solid silicone, silicone foam, silicone sponge, or molded silicone materials, each offering high thermal resistance, chemical resistance, and long-term durability. Their stable performance across wide temperature ranges makes them suitable for regulated applications, including those requiring FDA-compliant silicone grades.

What Types of Silicone Gaskets Are Available?

Solid Silicone Gaskets

Solid Silicone Gaskets

Solid silicone gaskets are dense, durable sealing components that maintain stability across wide temperature ranges. They offer strong compression strength and consistent performance in static and dynamic applications. Best for high-heat equipment, enclosures, and industrial machinery. Consider solid silicone when you need a firm seal with minimal deformation.

Silicone Foam Gaskets

Silicone Foam Gaskets

Silicone foam gaskets use a lightweight, low-density structure that absorbs vibration and cushions sensitive components. They provide thermal resistance and environmental sealing while remaining flexible. Best for electronics, HVAC panels, and applications requiring shock absorption. Consider foam if you need a softer seal without adding weight.

Low Durometer Silicone Gaskets

Low Durometer Silicone Gaskets

Low durometer silicone gaskets offer soft compression for surfaces that require a gentle, conforming seal. They fill gaps effectively at low bolt loads and maintain elasticity over time. Best for delicate assemblies, uneven surfaces, and equipment with limited fastening force. Consider this type when you need a seal that adapts easily to surface variations.

Platinum-Cured Silicone Gaskets

Platinum-Cured Silicone Gaskets

Platinum-cured silicone gaskets are high-purity components with excellent stability, low extractables, and strong resistance to contamination. They meet strict regulatory requirements for sanitary environments. Best for medical devices, pharmaceutical equipment, and clean-processing lines. Consider platinum-cured grades when your application requires the highest material purity.

Fluorosilicone Gaskets

Fluorosilicone Gaskets

Fluorosilicone gaskets combine silicone flexibility with strong resistance to fuels, oils, and solvents. They maintain performance in chemically harsh conditions and extreme temperatures. Best for aerospace, automotive fuel systems, and chemical-processing equipment. Consider fluorosilicone when your sealing application involves contact with aggressive fluids.

Flat & Custom Die-Cut Silicone Gaskets

Flat & Custom Die-Cut Silicone Gaskets

Flat and custom die-cut silicone gaskets are manufactured to your exact dimensions using precision cutting methods. They offer reliable sealing performance for complex shapes and tight tolerances. Best for control panels, custom housings, and OEM assemblies. Consider die-cut options when you need accurate shapes produced from your CAD files or drawings.

FDA-Grade & Food-Safe Silicone Gaskets

FDA-Grade & Food-Safe Silicone Gaskets

FDA-grade silicone gaskets are manufactured from compliant, non-toxic materials suitable for food contact and sanitary environments. They provide strong thermal resistance and maintain stability during repeated cleaning cycles. Best for food processing equipment, beverage systems, and medical devices. Consider FDA-grade silicone when your operation requires regulated, food-safe sealing.

Silicone Sponge Gaskets

Silicone Sponge Gaskets

Silicone sponge gaskets are compressible sealing components made from a closed-cell structure that blocks moisture, dust, and air while maintaining consistent cushioning under load. Their flexibility supports uneven surfaces and reduces vibration transfer, making them suitable for enclosures, outdoor equipment, and electronic assemblies exposed to temperature swings.

Molded Silicone Gaskets

Molded Silicone Gaskets

Molded silicone gaskets are formed through compression or injection molding to achieve precise geometries, tight dimensional control, and smooth sealing surfaces. These gaskets work well for OEM assemblies that require repeatable performance, custom shapes, and consistent behavior under mechanical stress or high heat.

What Materials Are Used to Manufacture Silicone Gaskets?

  • VMQ Silicone (Methyl Vinyl Silicone): General-purpose silicone elastomer offering wide temperature stability (–60°C to +230°C), strong flexibility, and reliable compression set resistance. Suitable for industrial, electrical, and environmental sealing applications.
  • Platinum-Cured Silicone: High-purity silicone with excellent thermal stability, low extractables, and biocompatibility. Used for FDA-compliant, medical, pharmaceutical, and food-processing gaskets requiring clean, non-toxic material performance.
  • Peroxide-Cured Silicone: Durable industrial-grade silicone with good mechanical strength, chemical compatibility, and stable sealing performance in high-temperature environments. Common in ovens, HVAC systems, and general industrial equipment.
  • Fluorosilicone (FVMQ): Fuel-resistant silicone elastomer with strong resistance to oils, solvents, aviation fuels, and aggressive chemicals, while maintaining flexibility at low and high temperatures. Preferred for aerospace, automotive fuel systems, and chemical-exposure environments.

Silicone Gasket Material Comparison Table

Material Temperature Range Chemical Resistance Compression Set Durometer (Shore A) Best For
VMQ Silicone (Standard Silicone Rubber) –60°C to +230°C Good resistance to water, mild chemicals, ozone, and weathering Low compression set 30–80 General industrial sealing, HVAC, medical devices, enclosures, high-heat equipment
Platinum-Cured Silicone –60°C to +230°C Excellent purity; resistant to oxidation, sterilization, and food/medical chemicals Very low compression set 30–70 Food processing, pharmaceutical systems, sanitary applications, medical devices
Peroxide-Cured Silicone –50°C to +200°C Good chemical resistance; suitable for industrial oils and moderate solvents Moderate compression set 40–80 Industrial machinery, oven doors, automotive components, moderate chemical exposure
Silicone Sponge –55°C to +200°C Good environmental and weathering resistance Low to moderate (depends on density) Soft/Medium ( varying densities ) Enclosure sealing, vibration damping, outdoor gaskets, IP-rated equipment
Silicone Foam –55°C to +200°C Good resistance to water, ozone, and thermal cycling Moderate Soft Thermal insulation, cushioning, light sealing, electrical enclosures
Fluorosilicone (FVMQ) –60°C to +200°C Excellent resistance to fuels, oils, solvents, hydraulic fluids Low compression set 40–80 Aerospace fuel systems, automotive fuel exposure, chemical processing
High-Temperature Silicone (Special Formulations) –70°C to +260°C (intermittent) Good resistance to heat, ozone, and environmental exposure Low 40–70 Extreme heat applications, industrial furnaces, high-temp process equipment
PTFE -200°C to +260°C Universal Good (with proper design) Requires high bolt load Excellent

How to Choose the Right Silicone Gasket for Your Needs?

Selecting the right silicone gasket depends on your operating environment, equipment design, and performance requirements. Begin by identifying the temperature range, pressure load, and type of media the gasket must handle. Match these conditions with the correct silicone grade, solid silicone for structural sealing, sponge or foam silicone for compression and vibration control, platinum-cured silicone for sanitary applications, or fluorosilicone for fuel and solvent exposure.

Review durometer options to ensure proper compression and sealing force, and confirm that the gasket meets any regulatory standards required for your industry. If your application demands precise dimensions or non-standard geometries, custom die-cut or molded silicone gaskets provide the most reliable fit.

Where Are Silicone Gaskets Commonly Used?

Silicon Gaskets are commonly used for below industries:

Automotive

Silicone gaskets are used in automotive systems that face heat, vibration, and fluid exposure. You’ll find them in engine covers, EV battery housings, lighting assemblies, and emission control units where temperature stability and long-term sealing are essential.

Electronics

Electronics equipment relies on silicone gaskets for moisture sealing, vibration absorption, and enclosure protection. They support IP-rated housings, control panels, communication devices, and outdoor electronic assemblies that need stable performance across wide temperature ranges.

Food Processing

Food-grade silicone gaskets are used in sanitary processing equipment, filling machines, mixers, and high-temperature ovens. Their FDA-compliant formulation prevents contamination and maintains safe sealing in environments exposed to heat, steam, and cleaning chemicals.

Medical Equipment

Medical devices use silicone gaskets for leak-free performance in pumps, diagnostic units, sterilization systems, and sensitive enclosures. Their USP Class VI and platinum-cured grades offer biocompatibility and consistent behavior in regulated environments.

HVAC Systems

HVAC units use silicone gaskets for duct seals, access panels, heating equipment, and systems exposed to wide thermal swings. Silicone’s low compression set and environmental resistance ensure reliable sealing in both hot and cold airflow environments.

Marine & Outdoor Environments

Silicone gaskets perform well in marine and outdoor equipment exposed to salt spray, UV radiation, and weather shifts. They are used in navigation systems, marine enclosures, external lighting, and outdoor machinery where environmental sealing is needed.

What are the Key Features & Benefits of Silicone Gaskets

High-Temperature Stability

Silicone maintains sealing performance from –60°C to +230°C, supporting equipment exposed to continuous heat, thermal cycling, and temperature spikes. This removes the need for seasonal gasket changes and ensures consistent operation in ovens, lighting systems, HVAC units, and industrial machinery.

Chemical and Environmental Resistance

Silicone resists water, steam, mild chemicals, cleaning agents, and environmental exposure such as ozone and UV. This enables long service life in outdoor enclosures, medical equipment, food processing lines, and environments where regular washdowns are required.

Low Compression Set for Long-Term Sealing

Silicone retains its elasticity under long-term compression, maintaining sealing force even after extended loading. This reduces the risk of slow leaks, minimizes retightening requirements, and preserves reliable performance in static and semi-dynamic joints.

Flexibility Across Wide Temperature Ranges

The material stays flexible at extremely low temperatures while remaining stable under high heat. This prevents cracking, hardening, and loss of sealing force during thermal expansion and contraction cycles.

FDA-Grade & Medical Compatibility

FDA 21 CFR 177.2600 and USP Class VI silicone grades allow you to use silicone gaskets in food production, pharmaceutical processing, and sanitary applications that require physiologically inert materials.

Electrical & Vibration Dampening Properties

Silicone’s dielectric strength and vibration absorption make it suitable for electronics, lighting assemblies, and equipment where shock, vibration, or EMI shielding components are required.

Custom Formulation Options

Silicone can be produced as solid, sponge, or foam material with tailored durometer, thickness, and color. This supports your specific design needs, making it easier to match sealing performance with surface finish, flange load, or environmental exposure.

Cleanroom & High-Purity Manufacturing

Because silicone does not shed particulates and is available in platinum-cured grades, it meets the strict cleanliness requirements of medical, pharmaceutical, and semiconductor environments.

Efficient Manufacturing for Complex Shapes

Silicone works well with die-cutting, water-jet cutting, CNC machining, and molding. This lets us produce intricate profiles, thin-wall geometries, tight tolerances, and large production runs without high tooling costs.

How to Install Silicone
Gaskets

To install Silicone Gaskets, consider the following steps:

1

Step 1: Surface Preparation

Clean all mating surfaces and remove debris, oil, or old gasket residues to ensure even contact.

2

Step 2: Gasket Verification

Confirm the gasket matches the required size, thickness, and material grade for your application.

3

Step 3: Correct Positioning

Place the silicone gasket without stretching or twisting. Keep it properly aligned with guides or light adhesive if needed.

4

Step 4: Even Fastening

Tighten bolts in a cross-pattern to apply uniform compression. Avoid over-tightening to prevent distortion or premature wear.

5

Step 5: Post-Installation Check

Inspect the seal line for gaps or misalignment. Ensure the gasket is seated evenly around the entire surface.

6

Step 6: Basic Maintenance

Periodically monitor for leaks, clean the gasket with non-abrasive methods, and replace it if signs of hardening, swelling, or damage appear.

Frequently Asked Questions

Here are some frequently asked questions about our Silicone Gaskets to help you find the answers you need:

Silicone gaskets last 10-20 years under normal operating conditions, with service life depending on temperature exposure, compression load, and chemical contact.

Silicone gaskets operate between –60°C and +230°C, with certain formulations tolerating short-term exposure up to 260°C depending on curing method and material grade.

Silicone rubber gaskets differ from regular rubber gaskets by offering higher temperature stability, better UV/weather resistance, and greater physiological inertness for food and medical use. Regular rubber materials provide stronger oil resistance in applications involving petroleum-based fluids.

Yes, custom silicone gaskets can be manufactured in any shape, thickness, or durometer using die-cutting, molding, or CNC-supported fabrication based on your specifications or CAD files.

Yes, silicone foam gaskets provide effective sealing performance for enclosures that require low closure force, controlled compression, vibration absorption, and thermal insulation.

Silicone rubber for sealing is typically selected in the 30-50 Shore A range, with softer grades improving conformability and harder grades supporting higher mechanical loads.

Silicone gaskets are manufactured in custom dimensions ranging from small precision components to large-format seals, with sizing determined by your design files, samples, or application requirements.

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