Fluorosilicone O-Rings
Excellent resistance to fuels, oils, and extreme temperatures for critical applications
View ApplicationsFluorosilicone O-Rings
Fluorosilicone O-Rings are high-performance elastomeric seals that combine the excellent temperature properties of silicone with the superior chemical resistance of fluorocarbons.
Specially designed for applications requiring resistance to fuels, oils, solvents, and extreme temperatures, these O-Rings offer reliable performance in the most demanding environments.
Key Technical Properties
Fluorosilicone O-Rings offer unique advantages for critical applications:
- Excellent resistance to fuels and oils including jet fuel, diesel, and synthetic oils
- Wide temperature range from -60°C to 200°C
- Superior resistance to solvents and chemical products
- Good compression set properties for effective sealing
- Resistance to weathering and ozone
- Does not support fungal growth or biological degradation
- Available in standard colors for easy identification
These O-Rings are the ideal choice for aerospace, automotive, and chemical process applications where performance in extreme conditions is critical.
Technical Properties of Fluorosilicone
Performance specifications and characteristics
Temperature Range
Continuous operation: -60°C to 200°C
Maximum peak: Up to 230°C for short periods
Thermal stability: Excellent property retention
Chemical Resistance
Excellent: Fuels, oils, oxygenated solvents
Good: Hydraulic oils, water, saline solutions
Limited: Ketones, esters, aromatic hydrocarbons
Mechanical Properties
Hardness: 50 to 80 Shore A
Tensile strength: 500 - 900 psi
Elongation: 150% - 400%
Compression set: 10% - 25%
Environmental Resistance
Ozone: Excellent resistance
UV and weathering: Very good
Humidity: Excellent
Fungi/mold: Does not support growth
Fluorosilicone vs Other Materials
Performance comparison in critical applications
Fluorosilicone (FVMQ)
Ideal for: Aerospace, automotive, chemical
Silicone (VMQ)
Ideal for: Food, medical, high temperature
Viton (FKM)
Ideal for: Aggressive chemicals, very high temperature
Main Applications
Industries where Fluorosilicone is the preferred choice
Aerospace
Fuel systems, engines, hydraulic systems, and aircraft components.
Automotive
Fuel injection systems, transmissions, emission systems, and under-hood components.
Chemical Processes
Process equipment, pumps, valves, and systems handling solvents and chemicals.
Oil and Gas
Drilling equipment, refineries, and systems handling fuels and oils.
Electronics
Component sealing in environments with cleaning solvents and severe conditions.
Military and Defense
Critical applications in weapon systems, military vehicles, and field equipment.
Advantages of Fluorosilicone
Superior Fuel Resistance
Excellent performance with jet fuel, diesel, gasoline, and other fuels, maintaining integrity and sealing properties.
Wide Temperature Range
Operates from -60°C to 200°C, covering cryogenic and high-temperature applications.
Excellent Environmental Resistance
Resistant to ozone, weathering, humidity, and does not support fungal or mold growth.
Chemical Compatibility
Excellent resistance to solvents, oils, many chemical products, and hydraulic fluids.
Good Mechanical Properties
Optimal balance between flexibility, strength, and low compression set for effective sealing.
Color Availability
Available in various colors for easy identification and coding in complex applications.
Standards and Specifications
Compliance with international standards
AMS 7276
O-Rings, Fluorosilicone Rubber -65° to 400°F
AMS 7277
O-Rings, Fluorosilicone Rubber -65° to 350°F
ASTM D2000
Classification System for Rubber Products
SAE AS568
Aerospace Size Standard for O-Rings
ISO 3601
Fluid power systems - O-rings
MIL-STD
Various military specifications
Need Fluorosilicone O-Rings?
We offer high-quality Fluorosilicone O-Rings for critical applications in aerospace, automotive, and chemical processes.