The aerospace industry demands uncompromising performance, precision, and safety. With aircraft and spacecraft subjected to extreme environments, materials used in their construction must deliver high reliability under stress. Among the many materials utilized, silicone rubber stands out for its exceptional durability, thermal stability, and resilience. Silicone rubber aerospace applications continue to grow due to the material’s adaptability in high-performance systems. From commercial aircraft to defense and space exploration vehicles, silicone rubber supports various components where performance and safety are non-negotiable.

Key Properties of Silicone Rubber for Aerospace Use

Thermal Resistance and Performance Across Temperature Extremes

Silicone rubber remains stable in a broad temperature range—from as low as -65°F to 450°F. This makes it ideal for components exposed to fluctuating temperatures, such as engine compartments, exhaust systems, and external fuselage seals. Its consistent performance under thermal stress prevents cracking, hardening, or degradation.

Superior Flexibility and Compression Set Resistance

Aircraft experience repeated pressurization cycles and mechanical stress during flight. Silicone rubber offers excellent compression set resistance, maintaining its shape and sealing ability over time. Its flexibility ensures long-term performance even when used in tight tolerances or intricate configurations.

Resistance to Ozone, UV, and Environmental Exposure

High-altitude exposure subjects aircraft materials to ultraviolet radiation, ozone, and atmospheric variations. Silicone rubber resists environmental aging and degradation, which helps extend service life and reduce the need for frequent part replacements. Its resistance makes it ideal for both interior and exterior aerospace applications.

Common Aerospace Applications for Silicone Rubber

Seals and Gaskets in Aircraft Engines and Cabins

Silicone rubber is frequently used in seals and gaskets, providing superior sealing performance. Whether applied in engine housings, fuel systems, or passenger cabins, silicone gaskets provide reliable protection against leaks, vibration, and pressure changes.

Vibration Dampening Components

Mechanical systems within aircraft often produce significant vibration. Silicone rubber is an effective vibration isolator, protecting critical equipment and minimizing noise transmission. It is used in engine mounts, control panels, and sensitive instrumentation.

Electrical Insulation in Avionics

Silicone’s insulating properties make it ideal for protecting avionics systems. It is used in insulating sleeves, pads, and coatings that shield electronic components from electrical interference and thermal stress. This helps ensure consistent avionics performance and system integrity.

Protective Covers and Tubing in Wire Harness Systems

Wire harnesses require robust protection from environmental and mechanical damage. Silicone rubber tubing and sheathing safeguard wires from abrasion, heat, and chemical exposure. These protective elements are critical in ensuring electrical continuity and system safety.

Benefits of Using Silicone Rubber in Aerospace Manufacturing

Increased Safety and Reliability

Safety is paramount in aerospace. Silicone rubber offers non-toxic, flame-retardant, and durable performance under severe conditions. These characteristics directly contribute to the safety and reliability of aircraft systems and components.

Lightweight Design Advantages

Weight reduction is a major priority in aerospace design. Silicone rubber, being lightweight yet strong, supports this objective. It replaces heavier materials without compromising performance, helping manufacturers meet efficiency and fuel economy goals.

Extended Product Lifecycle and Reduced Maintenance

Durability and resistance to environmental degradation result in longer part lifecycles. This reduces the frequency of maintenance and replacement, translating into cost savings and increased aircraft uptime for airlines and defense contractors.

Compatibility with Aerospace Manufacturing Standards

Manufacturers produce aerospace-grade silicone rubber that complies with AMS, MIL, and FAR specifications. This ensures that components meet required standards for both commercial and military aircraft applications.

Our Capabilities in Aerospace Silicone Solutions

In-House Formulation and Custom Compounding

Reiss Manufacturing develops custom silicone rubber compounds tailored to specific aerospace applications. With in-house formulation, we control every aspect of production, ensuring consistent quality and performance.

Certifications and Quality Control for Aerospace Clients

Our ISO 9001:2015 certification reflects our commitment to quality. Reiss conducts rigorous in-house testing to validate performance against aerospace standards, including heat resistance, compression set, and flammability compliance.

Experience Serving Aerospace OEMs and Tier Suppliers

Reiss Manufacturing has decades of experience providing high-performance elastomers to aerospace OEMs and Tier 1 suppliers. Our understanding of the industry’s complex needs allows for efficient collaboration and timely delivery of mission-critical materials.

Partner with Reiss Manufacturing

Reiss Manufacturing offers engineered silicone rubber solutions designed to meet the demanding specifications of the aerospace industry. With advanced compounding, stringent quality standards, and industry-specific experience, we are the trusted partner for high-performance elastomers.

Explore how we can support your next aerospace application. Contact us today to speak with a materials expert.