AURON FD-43 – Dielectric Heat Transfer Fluid & Specialty Fluid

AURON FD-43 is a fully fluorinated, dielectric heat transfer fluid designed for companies with the most demanding requirements for heat transfer, electrical insulation, and process reliability.

In addition to its use as a cooling medium, AURON FD-43 is also ideal as a precision cleaner, carrier fluid for lubricants, and special-purpose process fluid. Thanks to its excellent material compatibility, extremely low residue formation, and high chemical stability, AURON FD-43 supports reliable processes in electronics, semiconductor manufacturing, and high-tech industrial applications.

Your benefits at a glance

✔ Non-flammable - no flash point
✔ Very good dielectric properties
✔ Low viskosity
✔ High thermal stability
✔ Very good material compatibility
✔ Wide operating temperature range
✔ Very low residue formation
✔ Reliable long-term performance

Why AURON FD-43?

Versatile specialty fluid for industry and electronics

AURON FD-43 was developed for processes that require electrical insulation, heat transfer, material compatibility, and chemical stability simultaneously.

In addition to its use as a heat transfer fluid, AURON FD-43 is also suitable as:

• Precision cleaner
• Carrier fluid for lubricants
• Special-purpose process fluid
• Dielectric fluid for sensitive electronics

Developed for modern high-tech applications

AURON FD-43 is suitable for numerous industrial applications:

• Heat transfer systems
• Immersion cooling
• Data center cooling
• Cooling of power electronics
  Semiconductor equipment
• Precision cleaning of electronic assemblies
• Removal of heavy oils, greases, flux residues, waxes, and fluorinated lubricants
• Carrier fluid for fluorocarbon, hydrocarbon, and silicone formulations

Ideal for precision cleaning

In addition to cooling, AURON FD-43 is excellent for cleaning high-quality components.

Reliably removes:

• heavy oils
• lubricants
• greases
• waxes
• flux residues
• fluorinated lubricants

The extremely low residue formation ensures clean surfaces without additional post-treatment.

Excellent electrical properties

AURON FD-43 is particularly suitable for applications where electrical insulation and thermal management must be combined.

Technical Specifications:

• Dielectric strength: 52,57 kV (0,1" gap)
• Dielectric constant: 5,6
• Volume resistivity: 5,06 × 10⁹ Ω·cm

High thermal performance

AURON FD-43 provides stable heat transfer across a wide temperature range.

Advantages:

• Efficient heat transfer
• High thermal stability
• Low viscosity for good circulation
• Wide range of compatible fluids
• Consistent performance under demanding conditions

The typical recommended operating range is approximately -60 °C to +155 °C.

Material Compatibility

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

Technical Data

Safety and Environment

AURON FD-43 is non-flammable and intended for industrial and professional applications. It offers a long service life, low maintenance requirements, and extremely low residue formation. Refer to the safety data sheet before use.

Cost-Effectiveness and Sustainability

AURON FD-43 supports stable and cost-effective processes through:

• reduced maintenance intervals
• improved process reliability
• enhanced protection of high-value equipment and electronics
• long service life
• very low residue formation

Consulting for your application

Our team will assist you in selecting the right fluid and support you through material testing, process evaluation, and series production.