Xiamen Dezhengkai Sealing Technology Co., Ltd
Exquisite Craftsmanship, Excellent Quality, Focus On Sealing Fields.
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Our high-performance FKM/FFKM O-rings are specifically engineered to meet the extreme demands of electric vehicle batteries and energy storage systems (BESS). These electrolyte-resistant seals provide unmatched protection against high voltage, corrosive chemicals, and thermal stress - ensuring long-term reliability in the most challenging applications.
✔ Ultra-High Chemical Resistance
Withstands lithium-ion battery electrolytes (LiPF6, LiTFSI)
Resists acid/alkali solutions (pH 1-14)
Compatible with coolant fluids (glycol-based)
✔ Extreme Environment Durability
Temperature range: -40°C to +200°C (-40°F to +392°F)
Voltage resistance: Up to 1000V DC applications
Compression set: <15% @ 150°C after 1000h
✔ Material Superiority
FKM (Viton®): Cost-effective balance for most EV applications
FFKM (Perfluoroelastomer): Ultimate protection for extreme conditions
✔ Precision Engineering
Complies with AS568, ISO 3601, DIN 3771 standards
Available in standard and custom profiles
Cleanroom packaged for contamination-sensitive applications
Electric Vehicles:
Battery module sealing
Charging port connectors
Motor cooling systems
Energy Storage (BESS):
Power conversion equipment
Battery rack enclosures
Thermal management systems
New Energy Infrastructure:
Charging station components
Solar power storage
Hydrogen fuel cell systems
✅ Third-Party Tested - Validated against UL 94V-0, IEC 60730 safety standards
✅ Traceable Materials - Full RoHS, REACH, IMDS documentation available
✅ Custom Solutions - Tailored formulations for:
Low gas permeability requirements
Ultra-low temperature flexibility
Reduced friction coefficients