Galden® HT270 PFPE High-Temperature Heat Transfer Fluid
Galden® HT270 is a high-boiling PFPE heat transfer fluid from Syensqo, formerly Solvay Specialty Polymers. It belongs to the Galden® HT family of inert, dielectric, high-performance thermal fluids, whose boiling points range from 55°C to 270°C. HT270 is the highest-boiling standard HT grade. The fluid offers excellent thermal and chemical stability, broad material compatibility and low evaporation loss. It does not readily react with common heat-exchanger construction materials and helps minimize corrosion, decomposition residues and fluid-related pump problems. Galden® HT fluids are widely used in semiconductor manufacturing, including dry etching, CVD and PVD, as well as vapor-phase heating, recirculating chillers and electronic cooling. With a boiling point of 270°C, HT270 is particularly well suited to high-temperature heat-transfer applications.
Product Details
Product Features
High-Temperature Capability:A boiling point of 270°C supports demanding high-temperature thermal-management applications.
Excellent Chemical Inertness:The PFPE structure provides outstanding chemical stability and compatibility with many common construction materials.
Good Electrical Insulation:Typical dielectric strength is about 40 kV at a 2.54 mm gap, with a dielectric constant of approximately 1.94.
Low Volatility:Typical vapor pressure at 25°C is below 10⁻² torr, helping minimize fluid loss in high-temperature circulation systems.
Non-Flammable:Galden® HT PFPE fluids have no flash point, fire point or auto-ignition point according to the manufacturer’s technical literature.
Product Applications
Semiconductor Temperature Control:For thermal control in dry etching, CVD, PVD and related semiconductor equipment.
Vapor Phase Heating:Suitable for high-temperature vapor-phase heating and thermal-transfer processes.
Recirculating Chillers:For high-temperature precision temperature-control systems.
Electronic and Server Cooling:Applicable to transformer, supercomputer and advanced electronic cooling systems.
Chemical and Pharmaceutical Processing:Suitable as an inert heat-transfer medium in chemical and pharmaceutical thermal systems.
| Item | Galden® HT270 |
|---|---|
| Product Type | PFPE Heat Transfer Fluid |
| Brand | Galden® / Syensqo |
| Model | HT270 |
| Chemical Type | PFPE / Perfluoropolyether |
| Appearance | Clear Liquid |
| Boiling Point | 270°C |
| Pour Point | -66°C |
| Density @ 25°C | 1.85 g/cm³ |
| Kinematic Viscosity @ 25°C | 14.0 cSt |
| Vapor Pressure @ 25°C | <10⁻² torr |
| Specific Heat @ 25°C | 0.23 cal/g·°C |
| Latent Heat of Vaporization | 15 cal/g |
| Refractive Index | 1.283 |
| Coefficient of Thermal Expansion | 0.0011 cm³/cm³·°C |
| Surface Tension | 20 dyne/cm |
| Thermal Conductivity | 0.065 W/m·K |
| Dielectric Strength | 40 kV (2.54 mm gap) |
| Dielectric Constant | 1.94 |
| Dissipation Factor | 2×10⁻⁴ @ 1 kHz |
| Volume Resistivity | 6×10¹⁵ Ω·cm |
| Average Molecular Weight | 1550 amu |
| Water Solubility | 14 ppm(wt) |
| Air Solubility | 26 cm³ gas / 100 cm³ liquid |
| Key Properties | High Thermal Stability / Chemical Inertness / Electrical Insulation / Low Volatility / Non-Flammable |
