Dec

Galden D02 - An Advanced Alternative to 3M™ Fluorinert™ FC-40

To ensure continuity and performance stability, Hicotech introduces Galden D02 — a premium-grade PFPE electronic fluid specifically developed to serve as a direct and reliable replacement for 3M™ Fluorinert™ FC-40 in critical applications.

Galden D02 – An Advanced Alternative to 3M™ Fluorinert™ FC-40

With ongoing changes in global industrial regulations, 3M™ has confirmed the phase-out of Fluorinert™ FC-40 and other fluorinated fluids by the end of 2025. This decision poses significant challenges for industries that depend on high-performance dielectric and heat-transfer fluids.

High-Performance Electrical and Thermal Fluid

Galden® D02 is part of a versatile range of PFPE dielectric fluids with boiling points ranging 55 °C to 270 °C, enabling reliable operation across wide temperature extremes. Designed for advanced electronic testing and thermal management, Galden D02 delivers outstanding electrical insulation alongside exceptional chemical and thermal stability.

Technical Comparison: Galden D02 and 3M™ Fluorinert™ FC-40

Property	Unit	3M™ FC-40	Galden D02
Boiling Point	°C	165	175
Pour Point	°C	–57	–97
Density	g/cm³	1.85	1.95
Kinematic Viscosity	cSt	2.2	1.80
Thermal Expansion Coefficient	1/°C	0.0012	0.0011
Thermal Conductivity	W/m·K	0.065	0.070
Dielectric Strength	kV	46	40
Average Molecular Weight	g/mol	650	760

Thanks to its higher boiling point, significantly lower pour point, and increased density, Galden D02 ensures dependable performance in demanding electronic and thermal management environments.

Key Advantages of Galden D02

Galden D02 offers an exceptional balance of durability, safety, and performance:

Outstanding Chemical and Thermal Stability
Resistant to thermal decomposition, oxidation, and long-term degradation.
Broad Operating Temperature Range
Maintains consistent performance under both cryogenic and elevated temperature conditions.
High Purity and Operational Safety
Free bromine, low in VOC emissions, and inherently non-flammable.
Excellent Material Compatibility
Exhibits minimal water solubility and is compatible with most plastics, elastomers, and metals.
Superior Chemical Resistance
Withstands exposure to acids, bases, fuels, alcohols, glycols, and cleaning agents.
UV and Radiation Stability
Retains performance when exposed to ultraviolet light and gamma radiation.

Operational Benefits

In real-world industrial use, Galden D02 PFPE fluid provides:

Long-Term Stability

Exceptional resistance to chemical, thermal, oxidative, and radiation-induced aging, reducing performance loss over time.

Enhanced Safety

Complies with FM Approval Standard Class 6930 and remains non-flammable under normal operating conditions.

Low Maintenance Requirements

Engineered for extended service life, minimizing the need for frequent fluid replacement or system downtime.

Typical Applications

Galden D02 is ideally suited for:

Electronic and semiconductor testing systems
High-reliability thermal management solutions
Precision cooling processes
Equipment requiring high dielectric strength and stability

Conclusion

Galden D02 stands out as a robust, future-ready alternative to 3M™ Fluorinert™ FC-40, delivering superior stability, a wider operating temperature range, and excellent chemical resistance. It is an optimal choice for high-performance electronic and industrial applications where reliability and safety are paramount.