Oil Resistant Fluorosilicone O Ring Performance
The fluorosilicone O Ring is developed for sealing environments where continuous contact with oils or lubricating fluids can affect conventional rubber materials. Its material characteristics can be matched to the actual service conditions.
Oil Exposure Stability
Maintains its sealing function under specified oil-contact conditions when the compound is correctly selected for the fluid.
Elastic Sealing Response
Provides controlled elastic recovery after compression, helping maintain contact with mating surfaces during service.
Resistance to Fluid-Related Swelling
Appropriate compound selection can help control excessive dimensional changes caused by prolonged exposure to compatible oils or fluids.
Material Selection for Different Applications
Chaoyue can evaluate the working medium and environmental conditions when selecting the material.
- Oil & Lubricant Systems - FVMQ / FKM: Fluorosilicone can be considered where oil exposure and flexibility are important; FKM may be selected when broader chemical and high-temperature resistance is required.
- Water & Outdoor Applications - EPDM: EPDM is commonly considered for water, weathering, ozone, and outdoor exposure where oil resistance is not the primary requirement.
- General Mineral Oil Applications - NBR: NBR can be considered for common oil and grease sealing applications where the temperature and fluid conditions fall within the compound's service range.

Custom Fluorosilicone O Ring Development
Chaoyue supports custom FVMQ O Ring development for applications where standard specifications do not fully match the customer's sealing requirements.
Application-Specific Formulation
The fluorosilicone compound can be selected according to the actual oil type, temperature, exposure duration, and mechanical conditions.
Custom Specification
Dimensions, hardness, color, tolerance requirements, and identification marks can be developed according to project specifications.
Sample-Based Development
Existing O Rings, drawings, or mating components can be provided as references for product evaluation and custom development.
FAQ
Can fluorosilicone O Rings be used in moving sealing applications?
They can be considered for selected dynamic applications, but the suitability depends on movement speed, pressure, lubrication, surface finish, and groove design. Static and dynamic requirements should be reviewed separately.
Does the color of an O Ring affect its sealing performance?
Color itself is not normally the primary factor determining sealing performance. However, pigments and additives should be compatible with the selected fluorosilicone compound and application requirements.
How should O Rings be handled before assembly?
O Rings should be kept clean and protected from sharp tools, excessive stretching, and unnecessary deformation before installation. The sealing surface should also be free from particles that could damage the ring during assembly.
Can an O Ring be used after being removed from an assembly?
Reuse depends on the application and condition of the O Ring. If the ring shows permanent deformation, cuts, surface damage, or other visible changes after removal, replacement should be considered.
