Material Characteristics Typical Applications
NBR (Nitrile Butadiene Rubber) Resistant to oil, wear-resistant, low cost General industrial machinery, hydraulic systems
FKM (Fluororubber) Resistant to high temperature, chemical corrosion High-temperature environments, chemical equipment
EPDM (Ethylene Propylene Diene Monomer Rubber) Resistant to water, ozone, good weather resistance Water systems, automotive cooling systems
Silicone (Silicone Rubber) Resistant to high and low temperatures, non-toxic Food, medical, electronics industry
PTFE (Polytetrafluoroethylene) Resistant to strong acids and alkalis, low friction Vacuum, highly corrosive environments
Selection and Usage Tips
Static vs Dynamic Sealing
Static: Focus on the ability to recover from compression deformation
Dynamic: Focus on wear resistance and friction coefficient
Operating Conditions
Temperature Range: Select FKM/Silicone for high temperatures, NBR/Silicone for low temperatures
Pressure Grade: For high-pressure scenarios, recommend HNBR, FKM
Media Compatibility: Avoid chemical reactions with oil, acids, alkalis, etc.
Installation and Maintenance
Compression Rate: Suggested to be controlled within 10%–30%
Avoid scratches and distortions during installation
Regularly check for aging and wear, and replace in time