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Viton™ Fueling Aerospace Forward

The vital equipment that moves today’s aviation transportation not only requires economical solutions but also offers unmatched performance when it comes to the extreme environments of an airplane or space satellite. In a postpandemic world, the demand for travel and experiences is expected steadily grow. Chemours Viton™ fluoroelastomers (FKM) were designed for advanced elastomer components that can keep pace with aggressive chemicals, high temperatures, and low pressures.

Aerospace Environment


Within the aerospace environment, components and materials required to fuel to and propel the aircraft forward face extreme and challenging conditions, such as:   
 

  • Exposure to extreme chemicals, such as hydraulic fluids, jet fuels, engine lubricants, and solvents/degreasers 
  • Elastomer temperatures up to 608°F 
  • Metal seal temperatures to 2,000°F 
  • Pressures ranging from 20,000 psi 
  • High-frequency oscillations 
  • Dynamic, static, and rotary applications 
  • Thrust, propulsion and g-forces, and weightlessness 
  • Continual threat of fire and explosion

Viton™ Fluoroelastomers Benefits


It is important to note that the specific use of Viton™ fluoroelastomers in aerospace may vary depending on the requirements of the system or component. Here are some ways Viton™ fluoroelastomers may benefit the aerospace industry: 
  1. High- and Low-Temperature Resistance: Viton™ fluoroelastomers can withstand extreme temperatures ranging from −20°C to 250°C (−4°F to 482°F).  Their ability to maintain elasticity and sealing integrity at elevated temperatures ensures the reliable operation of aerospace systems. 

  1. Chemical Resistance: Viton™ fluoroelastomers exhibit excellent resistance to a wide range of chemicals, fuels, and lubricants. This property is especially important in aerospace applications where exposure to various fluids and aggressive substances is common.  It ensures that seals, gaskets, and other components maintain their integrity and functionality, even in contact with corrosive or reactive materials. 

  1. Low Outgassing: Viton™ fluoroelastomers have low outgassing properties, meaning they release minimal amounts of volatile materials when subjected to vacuum or high temperatures. This is crucial in aerospace applications, where outgassing can affect the performance of sensitive equipment or contaminate the spacecraft's interior. Outgassing refers to the release of volatile substances or gases from a material when subjected to vacuum or high temperatures.  

  1. Compression Set Resistance:  Compression set refers to the permanent deformation or loss of elasticity that occurs in a material after it has been subjected to compression over time. Viton™  fluoroelastomers exhibit excellent compression set resistance, ensuring long-term sealing integrity in aerospace components, even under continuous compression or cyclic loading. This property is vital for seals and gaskets in aerospace systems, as it ensures long-term sealing integrity and prevents leaks or failures. 

  1. Fuel Compatibility: Viton™ fluoroelastomers are highly compatible with various fuels, including jet fuel and rocket propellants. Their resistance to fuel swelling and degradation makes them ideal for fuel system seals and components in aerospace applications. 

  1. High Reliability: Aerospace applications demand high reliability and long service life. Viton™ fluoroelastomers are known for their durability, resistance to aging, and ability to maintain sealing integrity over extended periods, making them a preferred choice in critical aerospace systems. 

  1. Electrical Insulation: They can provide reliable insulation and sealing for electrical connectors, wires, and cables used in aerospace systems. Their ability to withstand high voltages and resist electrical breakdown makes them valuable for ensuring the safety and performance of electrical components in demanding aerospace environments. 

  1. Durability and Longevity: Fluoroelastomers are highly durable materials with excellent resistance to aging, weathering, and degradation. They can withstand prolonged exposure to harsh environmental conditions, including UV radiation, ozone, and temperature cycling. This durability ensures the long service life of aerospace components and reduces the need for frequent maintenance or replacement, contributing to overall cost-effectiveness. 

  1. Weight Reduction: Fluoroelastomers offer lightweight sealing solutions compared to alternative materials like such as metals. In aerospace applications, weight reduction is crucial for improving fuel efficiency and enhancing the overall performance of aircraft or spacecraft. By utilizing lightweight fluoroelastomers (FKM) seals and gaskets, aerospace systems can achieve weight savings without compromising on sealing integrity or reliability. 

Viton™ Selection Guide

 
Fluoroelastomers provide versatility, high performance, and reliability make them indispensable in ensuring the safety, efficiency, and longevity of aerospace systems. Explore some of the featured grades below:
Grade Nominal Viscosity,
ML1+10 at 121°C (250°F)
Polymer Fluorine Content,
% Gravity
Product Description
A-Types: Curative-Containing Precompounds
A-201C 20 66 Fast curing rate and is exceptional for injection
molding rheology with mold release
A-331C 30 66 High elongation and tear resistance with
outstanding mold flow
A-361C 30 66 Great for applications bonding to metal inserts
A-401C 40 66 Outstanding resistance to compression set with
rheology at high shear rates
A-601C 60 66 Superior resistance to compression set with
high viscosity and high state of cure
A-Types: Gum Polymers
A-100 10 66 Great polymer rheology that comprises
of ultra-low viscosity
A-200 20 66 A low-viscosity grade with
excellent polymer rheology
A-500 50 66 An intermediate-viscosity gum polymer
with outstanding polymer rheology
A-700 70 66 High-viscosity gum grade with
exceptional physical properties
A-HV 160 66 Superior physical properties
that encompass ultra-high viscosity benefits

Viton™ Aerospace Applications

 

Due to these high-performing properties, Viton™  fluoroelastomers find applications in various aerospace components, including engine seals, O-rings, gaskets, fuel system seals, hydraulic seals, electrical insulators, and connectors. Their ability to withstand extreme conditions and harsh environments helps ensure the safety, performance, and longevity of aerospace systems. 

 

  1. Fuel System

  1. Engine Components

  1. Hydraulic Systems

  1. Environmental Sealing

  1. Electrical Connectors and Wire Insulation

  1. Landing Gear

  1. Ozone- and UV-Resistant Components

The Next Frontier: Space Exploration and  Satellites

 

The use of Viton™ fluoroelastomers in space exploration and satellite technology highlights their ability to withstand the extreme conditions of space, including vacuum, temperature variations, radiation, and exposure to propellants and other harsh substances. This contributes to the longevity and safety of space missions and satellite operations. 

 

​Spacecraft Sealing


 

​Propellant Systems

 

 

Electrical Connectors 

Satellite Applications 

Viton™ fluoroelastomers and any associated logo is a trademark or copyright of THE CHEMOURS COMPANY FC, LLC used with consent by ChemPoint, an authorized distributor of THE CHEMOURS COMPANY FC, LLC.
 

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