AURON HT-165 – Heat Transfer Fluid for Immersion Cooling

AURON HT-165 is a dielectric heat transfer fluid based on a fluorinated fluid. It was developed for high-performance cooling and precise temperature control in demanding industrial applications.

Thanks to its higher boiling point of 165 °C, higher density, and very low vapor pressure, AURON HT-165 is particularly well-suited for applications where enhanced temperature stability and reduced evaporation losses are critical.

Your benefits at a glance

✔ Non-flammable
✔ No flash point
✔ Low viscosity for efficient heat transfer
✔ Very low vapor pressure
✔ Minimal evaporation losses
✔ High chemical and thermal stability
✔ Suitable for modern cooling and immersion systems
✔ No GHS labeling required

Why AURON HT-165?

Stable cooling performance at elevated temperatures

AURON HT-165 was developed for applications where thermal stability, electrical insulation, and low fluid losses are paramount.

AURON HT-165 meets precisely these requirements:

• Stable heat transfer
• Electrically insulating
• Non-flammable
• Very low evaporation losses
• High chemical stability
• Long service life
• Reduced maintenance requirements

This makes the fluid particularly suitable for closed cooling systems and industrial applications with elevated temperature requirements.

Outstanding electrical properties

AURON HT-165 is suitable for electrically sensitive applications where cooling and electrical insulation must be combined.

Technical specifications:

• Dielectric breakdown strength approx. 30 kV
• Dielectric constant approx. 4.2
• Specific resistance approx. 10¹² Ω·cm

This makes the fluid ideal for the direct cooling of electrical components.

Developed for modern cooling systems

AURON HT-165 is used wherever precise temperature control, high process stability, and electrical insulation are required simultaneously.

• Immersion cooling of servers and data centers
• AI and high-performance computing
• Temperature control in semiconductor manufacturing
• Cooling of power electronics
• Medical cooling systems
• Laser technology
• Industrial heat transfer applications

Optimized for immersion cooling

Immersion cooling is one of the most efficient cooling methods used in modern data centers and high-performance electronics.

Thanks to its moderate viscosity, AURON HT-165 enables stable heat transfer. Its very low vapor pressure reduces losses at elevated temperatures, while its higher boiling point supports an extended temperature range.

The advantages:

• stable temperature control
• reduced evaporation losses
• lower fluid consumption
• reduced maintenance requirements
• high operational reliability
• uniform temperature distribution

High thermal performance

AURON HT-165 supports stable cooling processes through:

• moderate viscosity for stable heat transfer
• very low vapor pressure
• minimal losses at elevated temperatures
• higher boiling point
• reliable operation in closed systems

The typical recommended operating range is approximately -80 °C to +155 °C.

Safety and Environment

AURON HT-165 combines high performance with safe industrial handling.

Properties:

• non-flammable
• no GHS classification
• no CLP labeling required
• ODP: 0
• GWP: 42
• low acute toxicity
• rapidly biodegradable
• no hazardous materials classification for ADR, IMDG, IATA, ADN, and RID

Material Compatibility

AURON HT-165 is compatible with a wide range of industrial materials.

• Aluminum
• Copper
• Stainless steel
• PE
• PP
• PTFE
• NBR

For critical applications, we generally recommend conducting a material test under actual process conditions.

Technical Data

Consulting for Your Cooling Application

Whether it’s immersion cooling, semiconductor processes, or industrial temperature control—we’ll help you select the right heat transfer fluid and guide you from the feasibility study through to series production.