When you think about aeroplanes, rubber does not usually come to mind. But you would be surprised to know that rubber is the most important factor used in both commercial and space flight. Silicone rubber has good UV resistance and an extreme temperature range, which is why it has been used in many industries.
Elastostar’s aerospace Silicone rubber seal and gasket items range from high specification products, developed to do in extremes of pressure and high temperature, to ground equipment elements such as ground box seals, electric adapters, door seals, and transportation caps. We also deal with all tiers of the aerospace supply chain and are approved by several significant aerospace makers. Elastostar’s key markets are the airplane’s interiors and exterior.
We supply Standard door seals and gaskets and grommet-moulded caps. We also produce bespoke moulded solutions, ranging from drink tray mats to window blinds.
Table of Contents
What Are Aerospace Silicone Rubber Seals & Gaskets?
Aerospace silicone rubber seals and gaskets are important for ensuring the safety and functionality of aircraft and spacecraft. These components are designed to handle harsh conditions, including temperature fluctuations and chemical exposure, helping protect critical systems like fuel tanks, engine compartments, and cabins.
These seals are made from silicone polymers, which provide excellent flexibility and resistance to UV light and ozone. They are commonly used for door sealing rubber and window rubber seals, ensuring proper insulation and pressure maintenance.
Additionally, seals for windows and aerospace gaskets protect sensitive systems from the harsh environment, making them essential for the aerospace industry. Their use in aerospace rubber applications ensures long-lasting protection and reliability under extreme conditions.
What are the Properties of Aerospace Silicone Rubber Seals & Gaskets?
Silicone rubber seals are essential for aerospace applications because of their ability to withstand extreme conditions.
- Heat Resistance: These seals, including u-shaped rubber seals and silicone door seals, perform well in both extreme heat and cold, which is crucial for aircraft seals in engines and cabins.
- Chemical Resistance: Aerospace rubber is non-reactive to jet fuels, oils, and hydraulic fluids, ensuring safe sealing in fuel systems and other critical areas.
- Flexibility & Durability: Rubber seals for windows and rubber seals for aircraft cabins maintain flexibility even under continuous stress, ensuring long-lasting durability.
- Non-Flammable: These seals meet aerospace safety standards for fire resistance, making them safe for seal aviation systems.
- UV & Ozone Resistance: Designed to withstand UV radiation and ozone exposure, they offer reliable sealing in outdoor environments, such as rubber seals for aircraft windows.
These properties ensure that aerospace silicone rubber seals are reliable, durable, and ideal for demanding aviation conditions.
Comparison of Silicone Rubber Seals vs. Other Common Materials
| Property | Silicone Rubber | Neoprene | EPDM | Viton |
| Temperature Resistance | Excellent | Moderate | Good | Excellent |
| Chemical Resistance | Excellent | Moderate | Good | Excellent |
| Flexibility | High | Moderate | High | Moderate |
| UV/Ozone Resistance | Excellent | Good | High | Good |
- Silicone rubber excels for its superior resistance to temperature, chemicals, and UV/ozone, making it ideal for aerospace applications.
- Neoprene and EPDM offer good overall performance but are less effective in extreme conditions.
- Viton excels in high temperatures and chemical resistance but is less flexible than silicone.
What are the Applications of Aerospace Silicone Rubber Seals & Gaskets?
1. Aircraft Seals & Gaskets
Silicone rubber seals are vital in various parts of an aircraft, providing crucial protection and insulation.
- Cabin and Window Seals: Rubber seals for windows and p-shape rubber seals help maintain cabin pressure while insulating the interior from extreme temperatures. These seals for windows also prevent air leaks and reduce noise during flight.
- Engine Seals: Silicone rubber seals in engine systems can handle high temperatures, preventing fluid leaks and maintaining safe operation in critical components like engines and fuel systems.
- Landing Gear Seals: Aircraft sealing includes landing gear seals, which protect hydraulic systems from mechanical stress and temperature changes. This ensures that the landing gear operates safely under pressure.
2. Spacecraft Seals & Gaskets
In spacecraft, silicone rubber gaskets protect systems from extreme environmental conditions:
- Thermal Resistance: These seals protect spacecraft from extreme heat and cold in space, maintaining system integrity.
- Vibration Dampening: Aviation seals help reduce vibrations during launches and re-entry, stabilizing the spacecraft’s overall structure.
3. Defense & Military Applications
In military aircraft and defense vehicles, silicone rubber gaskets ensure reliable operation of essential systems:
- Fuel System Gaskets: Rubber door sealants and seals in fuel systems help maintain safe fuel transport and prevent leaks, even in high-pressure environments.
- Shock Absorption: In defense equipment, door sealing rubber and gaskets absorb shocks and vibrations, ensuring smooth operation under intense conditions.
Advantages of Silicone Rubber Seals & Gaskets in Aerospace
Silicone rubber offers several benefits for aerospace companies when used in aircraft and spacecraft
- Lightweight: D-shape rubber seals and other silicone components help reduce aircraft weight, contributing to better fuel efficiency.
- Long-lasting: These seals require minimal maintenance, making them a durable and cost-effective choice, even in extreme conditions.
- Customizable: Silicone rubber seals can be easily molded for specialized applications, allowing aerospace companies to meet specific needs in aviation and other critical areas.
Benefits at Elastostar Rubber Corporation
- We supply the industry with innovative and functional aircraft and aerospace seal solutions.
- We specialise in the design, development, and manufacture of Custom and standard elastomer extrusions and components for aerospace and aircraft applications.
- We provide our customers aircraft door seals and aerospace sealing solutions for engines, landing gear, flight controls, and more.
- We offer round-the-clock product assistance with direct line feed, kitting, and sub-assembly capabilities.
Why Select Elastostar Rubber Corp for Aerospace Rubber Seals?
- We manufacture the best quality silicone rubber cord, seals per our client’s requirement.
- We have a stage of the production line at our fingertips, which implies that we have full control throughout the process.
- Our professional team will provide samples for screening and work on the option most suitable for client needs.
- The aerospace industry often services extremely tight design and construction routines, requiring a partner who can respond extremely rapidly to changes and modifications.
For more information about aerospace applications, or would like some assistance in selecting the right aerospace rubber seal products for your requirements, feel free to get in touch with Elastostar Rubber Corporation today by emailing us at info@elastostar.com or call us on 614-841-4400. We will help you to explore more ways to utilize our products for your special purpose.
Recommended Reads
- Silicone Gaskets vs Neoprene: What to Choose?
- How Silicone Rubber Tubing Is Made For Different Application
- Silicone Rubber Temperature: How Much Heat Can It Withstand?
Conclusion
Silicone rubber seals and gaskets are essential for ensuring aircraft and spacecraft systems’ safety, durability, and efficiency. Their resistance to extreme temperatures, chemical exposure, and mechanical stress makes them ideal for demanding aerospace applications. These seals contribute to long-lasting performance and customizable solutions, ensuring they meet the strict requirements of the aerospace industry. Choosing high-quality silicone rubber seals guarantees reliable and efficient operation in critical systems.
What rubber is used in aerospace?
Silicone rubber is commonly used in the aerospace industry due to its ability to handle extreme temperatures, chemical resistance, and durability. It is ideal for aircraft and spacecraft seals, gaskets, and other critical components.
Who makes aerospace gaskets?
Elastostar Rubber Corporation specializes in manufacturing high-quality aerospace gaskets. These gaskets are designed to meet the rigorous standards of the aerospace industry, ensuring reliable performance under extreme conditions, including temperature fluctuations and chemical exposure.
What seals are used in aerospace?
The aerospace industry primarily uses silicone rubber seals due to their high heat, chemical, and pressure resistance. Materials like Viton and EPDM are also used depending on specific requirements, such as fuel system sealing and temperature management.
What are silicone gaskets used for?
Silicone gaskets create a secure, airtight seal in various applications, including aircraft cabins, engine components, and fuel systems. They provide excellent heat resistance and chemical stability, making them ideal for high-performance aerospace environments.
