Research and Certification
Thermal Fluid Sealing Applications
Rubber sealing materials are widely used in AI server liquid cooling, high-power electronics thermal management, EV/hybrid cooling modules, industrial fluid control, and refrigerant systems.
Excellent Media & Environmental Adaptability
Under high thermal loads, high pressure differentials, and continuous circulation, seals must offer outstanding coolant, refrigerant, and fluid compatibility. They also require low permeability, chemical/oil resistance, thermal cycling tolerance, and long-term stability to prevent leaks, ensure system safety, and enhance reliability.
Seals are critical to cooling efficiency, fluid stability, and leak
prevention.
With the rapid growth of AI liquid cooling, HPC, EVs, battery thermal
management, and industrial cooling, thermal fluids are evolving toward
low viscosity, high thermal conductivity, high dielectric capacity,
and long service life.
Therefore, seals must adapt to diverse thermal fluid environments, including:
- PG/EG glycol coolants
- PAO synthetic hydrocarbon heat transfer fluids
- Dielectric coolants
- Refrigerant systems
- Fluorinated fluid coolants
- Compressor oils
Key Applications
Sealing Elements
O-rings, gaskets, flat seals, oil seals, water seals
Ensure Long-term coolant tightness & zero leakage
Liquid Cooling Lines
Hoses, tubes, fitting seals, filter seals
Pressure, thermal cycling & coolant swelling resistance
Cold Plate Modules
Flat & joint seals for cold plates
Retains compression recovery under long-term thermal cycling
Immersion Cooling
Tank, flange, packing & top cover seals
Low permeability & long-term oil-aging resistance
Cabinet & Rack Modules
Liquid cooling & heat exchanger seals
Vibration, pressure, temperature & corrosion resistance
Damping Systems
Pump seals, relief valves, diaphragm valves, pulsation dampers
Pressure stabilization & fluid buffering
CHR information
Volume change : Good: <10%, Fair: 10~20%, Poor: >20%
Fluid Name: PG: Propylene glycol, PFPE: Perfluoro-Polyether, HFE:
Hydrofluoroether
Exclusive Custom Services
Chang Horng Rubber provides high-performance rubber solutions for diverse thermal fluids. We offer customized seal designs and compounding recommendations based on fluid type, operating temperature, and application requirements.