描述
Galden HT135 135 °C Low Viscosity PFPE Heat Transfer Fluid
Material: PFPE (Perfluoropolyether)
Boiling Point: 135℃
Pour Point: -100℃
Viscosity (25℃): 1.00 cSt
Packing: 5 KG / drum
Galden HT135 is a low-viscosity perfluoropolyether (PFPE) heat transfer fluid within the Galden HT series. It delivers a viscosity of 1.00 cSt and a pour point of -100 °C, making it the lowest viscosity HT grade with a boiling point above 130 °C. Produced by Syensqo, formerly Solvay, this inert, dielectric and non‑flammable fluid has a boiling point of 135 °C. It offers excellent flow and low-temperature pumpability for medium-high temperature thermal management tasks.
Galden HT135 provides a compelling balance between boiling point and viscosity. Compared with HT110 (0.770 cSt / 110 °C), HT135 offers a 25 °C higher boiling point with only a modest increase in viscosity. Compared with HT170 (1.80 cSt / 170 °C), HT135 delivers lower viscosity and faster thermal response. Its -100 °C pour point ensures outstanding pumpability even under cold conditions.
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We supply stable spot inventory of genuine Galden HT135 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 HT135 PFPE Heat Transfer Fluid
- Lowest viscosity (1.00 cSt) among HT grades with boiling point ≥130 °C — superior flow and thermal response
- Pour point of -100 °C — excellent low-temperature pumpability
- 135 °C boiling point — ideal for medium-high temperature heat transfer applications
- Volume resistance of 1.5×10¹⁵ ohms·cm for safe energized cooling
- Low vapor pressure (5.8 torr) for minimal evaporation losses
- Non-flammable and chemically inert for hazardous environments
- 610 amu low molecular weight — faster heat transfer response than higher molecular weight HT grades
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℃ |
| Boiling Point | 135℃ | Standard Atmosphere |
| Pour Point | -100℃ | ASTM D97 |
| Density (25℃) | 1.72 g/cm³ | 25℃ |
| Average Molecular Weight | 610 amu | GPC Test |
| Kinematic Viscosity (25℃) | 1.00 cSt | 25℃ |
| Surface Tension | 17 dyne/cm | 25℃ |
| Vapor Pressure | 5.8 torr | — |
| Heat of Vaporization | 16.0 cal/g | At Boiling Point |
| Specific Heat Capacity (25℃) | 0.23 cal/g/℃ | 25℃ |
| Solubility of Air | 26.0 ml gas/100ml liquid | — |
| Solubility of Water | < 10.0 wppm | — |
| Dielectric Constant | 1.92 | ASTM D150 |
| Dielectric Strength (2.54mm gap) | 40 kV | ASTM D149 |
| Volume Resistance | 1.5×10¹⁵ 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 a 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 HT135 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
How does Galden HT135 compare with other Galden HT series fluids?
Galden HT135 offers an ideal balance of low viscosity (1.00 cSt) and medium-high temperature performance (135 °C boiling point). Compared with HT110 (0.770 cSt / 110 °C), HT135 provides a 25 °C higher boiling point with only a slight viscosity increase. Compared with HT170 (1.80 cSt / 170 °C), HT135 delivers lower viscosity and faster thermal response at a lower boiling point.
What makes Galden HT135 unique in the HT series?
Galden HT135 combines a 135 °C boiling point with low viscosity (1.00 cSt) and an ultra-low pour point of -100 °C. It is the lowest viscosity HT grade with a boiling point above 130 °C, offering excellent flow and low-temperature pumpability for medium-high temperature applications.
What is the boiling point of Galden HT135?
Galden HT135 has a boiling point of 135 °C. Its kinematic viscosity is 1.00 cSt at 25 °C. These properties deliver excellent heat transfer performance for medium-high temperature applications.
Is Galden HT135 suitable for direct contact with electronics?
Yes. Galden HT135 is inert, dielectric and non-flammable. It offers volume resistance of 1.5×10¹⁵ ohms·cm, dielectric strength of 40 kV and dielectric constant of 1.92. These properties ensure safe operation with sensitive electronic equipment.
What is the recommended storage condition for Galden HT135?
Store sealed original containers in a dry, well-ventilated area away from heat sources and direct sunlight. Keep containers tightly closed when not in use to prevent contamination.
What technical documents are available for Galden HT135?
We supply original factory TDS, SDS and batch COA. These documents support heat transfer system qualification and quality assurance.
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℃) | Pour Point | Core Application |
| Galden HT55 | 55℃ | 0.45 cSt | < -125℃ | Ultra Low Viscosity Cooling |
| Galden HT90 | 90℃ | 1.50 cSt | -95℃ | Medium Temperature Heat Transfer |
| Galden HT110 | 110℃ | 0.770 cSt | -100℃ | Low Viscosity Medium Temperature |
| Galden HT135 | 135℃ | 1.00 cSt | -100℃ | Medium-High Temperature Low Viscosity |
| Galden HT170 | 170℃ | 1.80 cSt | -97℃ | Low Viscosity High Temperature |
| Galden HT200 | 200℃ | 2.40 cSt | -85℃ | Balanced Performance Grade |
| Galden HT270 | 270℃ | 14.0 cSt | — | Ultra-High Temperature Heat Transfer |
Get Galden HT135 Bulk Pricing & Heat Transfer Support
We stock genuine Syensqo Galden HT135 PFPE heat transfer fluid for medium-high temperature thermal management applications. Reach out for competitive pricing, lab trial samples and complete technical certification files.
Request Galden HT135 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.
