High temperature silicone rubber is a versatile, heat-resistant elastomer designed to maintain performance in environments where extreme thermal stability is required. Unlike standard rubber compounds, silicone maintains its mechanical properties across a broad temperature range. For Reiss Manufacturing’s engineered silicone rubber materials, this range spans from -60°F to 450°F (-51°C to 232°C), making it ideal for mission-critical applications across numerous demanding industries.

Formulated to resist degradation from heat, ozone, UV exposure, and chemical interaction, silicone rubber serves as a durable solution in applications where reliability under thermal stress is non-negotiable.

Key Properties of High Temperature Silicone Rubber

Silicone rubber exhibits a unique combination of properties that make it well-suited for extreme conditions:

• Thermal Stability: Retains its structure and flexibility at temperatures exceeding 400°F. Reiss formulations offer stability up to 450°F, depending on compound type.
• Chemical Resistance: Withstands exposure to oils, solvents, and many corrosive agents, even at elevated temperatures.
• Weather and UV Resistance: Offers excellent resistance to ozone, oxidation, and UV light without compromising performance.
• Electrical Insulation: Exhibits strong dielectric strength, making it ideal for electrically sensitive applications under heat stress.
• Mechanical Integrity: Maintains flexibility, elongation, and tensile strength across fluctuating temperature cycles.

These properties make high temperature silicone rubber a reliable solution for sealing, insulating, or cushioning components that are exposed to continuous or intermittent heat.

Industry Applications

Aerospace

Silicone rubber is a key material in aerospace applications where both high performance and low outgassing are required. It is used for:

• Engine and cabin seals
• Vibration-dampening pads
• High-altitude gaskets
• Thermal insulation

Military and Defense

Military-grade silicone rubber manufactured by Reiss is suited for harsh field conditions. Applications include:

• Seals and boots for electronics and weaponry
• Vibration isolators
• Environmental protection for communication systems

Automotive

In automotive design, high temperature silicone rubber is used in:

• Under-the-hood components
• Turbocharger hoses
• Heat shields
• Gaskets and seals exposed to engine heat

Industrial and Manufacturing

Extreme temperature silicone rubber is essential in:

• Industrial ovens and furnaces
• Molded gaskets for machinery
• Thermal insulation in manufacturing lines
• High-temp electrical housings

Why Choose Reiss Manufacturing?

Reiss Manufacturing combines over a century of experience with modern engineering to deliver reliable silicone solutions for high-temperature applications.

• Custom Compounding Expertise: Reiss engineers formulate silicone rubber blends that meet exacting performance standards, including elevated temperature thresholds and specific chemical resistance requirements.
• R&D and Quality Control: All manufacturing is backed by ISO 9001:2015-certified processes, ensuring material consistency, traceability, and quality.
• Industry Heritage: With over 100 years of continuous operation, Reiss brings proven engineering support and innovative solutions for complex environments.

Available High-Temperature Silicone Rubber Grades at Reiss

Reiss offers a comprehensive range of high temperature silicone rubber formulations to suit diverse applications:

Curing Methods:

• Peroxide-Cured Silicone: Traditional curing with excellent thermal and mechanical properties
• Platinum-Cured Silicone: Cleaner curing with low outgassing, ideal for sensitive and sterile applications

Material Formats:

• Solid Silicone Rubber: High strength, excellent for molded parts and seals
• Silicone Sponge and Foam: Lightweight and compressible for gasketing and insulation

Specialty Grades:

• Flame-Retardant Silicone: For fire-critical applications
• Conductive Silicone: Combines electrical conductivity with thermal resistance for EMI shielding

Custom Fabrication and Engineering Support

Reiss Manufacturing offers end-to-end support from material selection to final part production, including:

• Engineering Consultation: Assistance in choosing or developing the right formulation for thermal, mechanical, or regulatory requirements
• Prototyping and Testing: In-house facilities to develop and test sample parts before full-scale production
• Extrusion and Molding Capabilities: Custom profiles, seals, tubing, and molded parts fabricated to customer specifications

With a vertically integrated process, Reiss ensures consistent quality, tight tolerances, and responsive lead times.

Partner with Reiss Manufacturing for Demanding Applications

When performance under pressure matters, Reiss Manufacturing provides the high temperature silicone rubber solutions that industries trust. With engineered materials, certified quality systems, and a commitment to innovation, we are a proven partner for businesses operating in extreme conditions. Contact us today to discuss your high-temperature silicone rubber requirements!