描述
Galden HT55 – 55℃ Ultra Low Viscosity PFPE Heat Transfer Fluid
Material: PFPE (Perfluoropolyether)
Boiling Point: 55℃
Pour Point: < -125℃
Viscosity: 0.45 cSt
Packing: 5 KG / drum
Galden HT55 is an ultra-low viscosity perfluoropolyether (PFPE) heat transfer fluid specifically engineered for demanding thermal management applications. Manufactured by Syensqo (formerly Solvay), this inert, dielectric, and non-flammable fluid features a boiling point of 55°C and an exceptionally low pour point of less than -125°C, enabling reliable performance across an extraordinarily broad temperature range. Its ultra-low viscosity of 0.45 cSt ensures efficient heat transfer and excellent flow characteristics in precision cooling systems.
Galden HT55 offers excellent thermal stability and can be used at end-use temperatures up to 290°C, making it suitable for the most demanding applications. Its outstanding dielectric properties, including a dielectric strength of 40 kV and volume resistivity of 1.0×10¹² ohms·cm, provide safe operation in direct contact with energized electronic components. The fluid's low surface tension (14 dyne/cm) ensures complete wetting and efficient heat transfer in complex cooling geometries.
🔹 Genuine Syensqo Imported Stock & Heat Transfer Support
We supply stable spot inventory of genuine Galden HT55 PFPE heat transfer fluid. Complete official TDS, SDS and batch COA documents are available for semiconductor, chemical, pharmaceutical, and electronics cooling applications. Contact us for competitive bulk pricing and technical guidance on heat transfer system design.
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✅ Complete SDS & customs clearance documents provided
Core Advantages of Galden HT55 PFPE Heat Transfer Fluid
- Ultra-low viscosity (0.45 cSt) for superior heat transfer efficiency
- 55°C boiling point and < -125°C pour point for extremely wide operating range
- End-use temperature capability up to 290°C
- Excellent dielectric properties: volume resistivity 1.0×10¹² ohms·cm
- Dielectric strength of 40 kV for safe energized cooling applications
- Non-flammable and chemically inert for hazardous environments
- Low surface tension (14 dyne/cm) for complete wetting and heat transfer
- Outstanding thermal stability across the entire operating range
Main Applications
- Semiconductor processing and manufacturing equipment
- Chemical and pharmaceutical temperature control systems
- Vapor phase heating and thermal management
- Transformer cooling and high-voltage equipment
- Supercomputer and data center liquid cooling
- Recirculating chiller systems
- Nuclear and high-reliability thermal management applications
Full Technical Parameters (Syensqo Official Data)
| Property | Typical Value | Test Condition |
| Base Material | Perfluoropolyether (PFPE) | — |
| Visual Appearance | Clear Colorless Liquid | Ambient 25℃ |
| Density | 1.65 g/cm³ | 25℃ |
| Average Molecular Weight | 340 amu | GPC Test |
| Kinematic Viscosity | 0.45 cSt | 25℃ |
| Surface Tension | 14 dyne/cm | 25℃ |
| Vapor Pressure | 225 torr | 20℃ |
| Boiling Point | 55℃ | Standard Atmosphere |
| Pour Point | < -125℃ | ASTM D97 |
| Heat of Vaporization | 22.0 cal/g | At Boiling Point |
| Specific Heat Capacity (25℃) | 0.23 cal/g/℃ | 25℃ |
| Thermal Conductivity | 0.065 W/m/K | 25℃ |
| Solubility of Air | 26.0 ml gas/100ml liquid | — |
| Solubility of Water | < 10.0 wppm | — |
| Dielectric Constant | 1.86 | ASTM D150 |
| Dielectric Strength (2.54mm gap) | 40 kV | ASTM D149 |
| Volume Resistivity | 1.0×10¹² ohms·cm | ASTM D257 |
| Dissipation Factor (1 kHz) | 2.0×10⁻⁴ | ASTM D150 |
Note: All listed figures are typical lab test reference values instead of binding factory specifications. Complete independent qualification testing is required before mass production deployment.
Handling and Storage Recommendations
| Storage Rules | Store sealed original containers in dry, well-ventilated area away from heat sources and direct sunlight |
| Forbidden Environments | Avoid exposure to open flames, strong oxidizing agents and reactive metal powders |
| Operation Protection | Maintain adequate ventilation; wear nitrile protective gloves and anti-splash safety goggles during handling |
Official Technical Documentation
| Document Type | Document Introduction | Document Request |
| TDS | Galden HT55 original factory technical data sheet | Request TDS |
| SDS | Safety data sheet covering transport, storage and handling guidelines | Request SDS |
| COA | Batch specific certificate of analysis for incoming goods inspection | Request COA |
Frequently Asked Questions
What is the boiling point and pour point of Galden HT55?
Galden HT55 has a boiling point of 55°C and an ultra-low pour point of less than -125°C, making it suitable for a wide range of heat transfer applications from cryogenic to elevated temperatures.
What makes Galden HT55 suitable for demanding heat transfer applications?
Its ultra-low viscosity (0.45 cSt), excellent thermal stability, non-flammability, and outstanding dielectric properties (dielectric constant 1.86, volume resistivity 1.0×10¹² ohms·cm) make it ideal for semiconductor, chemical, pharmaceutical, and electronics cooling applications.
What applications is Galden HT55 suitable for?
Galden HT55 is ideal for semiconductor processing, chemical and pharmaceutical temperature control, vapor phase heating, transformer cooling, supercomputer cooling, recirculating chillers, and nuclear applications.
Is Galden HT55 compatible with sensitive electronic equipment?
Yes. Its excellent dielectric properties (dielectric strength 40 kV, dielectric constant 1.86) and chemical inertness make it fully compatible with sensitive electronic equipment and components.
What is the recommended storage condition for Galden HT55?
Store sealed original containers in dry, well-ventilated area away from heat sources and direct sunlight. Keep containers tightly closed when not in use to prevent contamination.
What official documents can I obtain for Galden HT55?
We supply original factory TDS, SDS and batch COA to support your heat transfer system qualification and quality assurance requirements.
Related Galden HT Series Heat Transfer Fluids
Compare Galden HT series heat transfer fluids for different temperature and viscosity requirements.
| Product Grade | Boiling Point | Viscosity (25℃) | Core Application |
| Galden HT55 | 55℃ | 0.45 cSt | Ultra Low Viscosity Heat Transfer |
| Galden HT70 | 70℃ | — | General Heat Transfer |
| Galden HT200 | 200℃ | — | High Temperature Heat Transfer |
Get Galden HT55 Bulk Pricing & Heat Transfer Support
We stock genuine Syensqo Galden HT55 PFPE heat transfer fluid for demanding thermal management applications. Reach out for competitive pricing, lab trial samples and complete technical certification files.
Request Galden HT55 Heat Transfer Fluid Technical Details
Disclaimer: All technical figures displayed are lab reference data and not legally binding product specifications. Buyers must carry out independent compatibility and cycle testing prior to bulk order placement. Minor performance deviation may exist across different production batches.




