Thermasolv CF4 is a dielectric heat transfer fluid from Inventec Performance Chemicals. It is built for single-phase immersion and direct cooling, with very low viscosity to cut pump energy.

Key Features of Thermasolv CF4

  • Viscosity 0.71 cSt
  • Dielectric strength 40 kV
  • Perfect for semiconductor tool cooling

What Is Thermasolv CF4 Used For?

It suits single-phase immersion cooling and cold plate or tube direct cooling. It also cools semiconductor equipment such as ion implanters, dry etchers and CVD machines, and suits dielectric testing.

Lower Pump Energy

Low kinematic viscosity (0.71 cSt at 20°C) reduces pump energy consumption. In addition, very low surface tension (15 dynes/cm) and excellent thermal conductivity support efficient heat transfer from -28°C to 85°C.

Is Thermasolv CF4 Safe for Live Equipment?

Yes. It has a dielectric strength of 40 kV (0.1″ gap at 25°C). So equipment can run under power while submerged. It is also non-flammable, with no flash point, and non-toxic, with no hazard classifications.

Material Compatibility

It is compatible with most metals, plastics and elastomers. However, we recommend testing it with your materials before use. It stays thermally and chemically stable in use, which supports long-term performance.

Why Choose Thermasolv CF4?

It combines low pumping costs with strong insulation and zero ODP. You can also recycle used fluid through Inventec’s Ecoprogram service. Therefore, it is a reliable choice for immersion, direct and semiconductor process cooling.

Thermasolv CF4 Technical Specifications

Specification Value
Appearance Colorless, Clear
Purity >99.5%
Flash Point None
Boiling Point 98°C / 208°F
Pour Point -38°C / -36°F
Critical Temperature 285°C / 545°F
Vapor Pressure (@20°C) 5.9 kPa
Heat of Vaporization (@BP) 102 kJ/kg
Liquid Density (@20°C) 1660 kg/m³
Kinematic Viscosity (@20°C) 0.71 cSt
Surface Tension 15 dynes/cm
Dielectric Strength (0.1″ gap @25°C) 40 kV
Dielectric Constant (@1kHz/25°C) 2.09
Solubility (Fluid in Water) 586 ppb
Solubility (Water in Fluid) 67 ppb
Ozone Depletion Potential (ODP) None
Operating Range -28°C to 85°C

Browse our full range of cooling fluids to compare options for your application.

You may also like…

thermasolv

Thermasolv CF3

  • • Boiling point: 120°C
  • • Dielectric strength: >35.7kV
  • • Ideal for immersion cooling
thermasolv

Thermasolv CF2

  • • Boiling point: 110°C
  • • Dielectric strength: 39.4kV
  • • Ideal for immersion cooling
Series 86xx Wire Bonder
Rehm X-Line In-Line Vapor Phase System

Thermasolv CF4

In Stock

Thermasolv CF4 is a dielectric heat transfer fluid designed for single-phase immersion and direct cooling systems, allowing electronics to operate safely while submerged and energized. With a boiling point of 98°C, dielectric strength of 40 kV, and low viscosity of 0.71 cSt, Thermasolv CF4 delivers excellent thermal conductivity and efficient heat transfer while minimizing pump energy consumption. Its non-flammable, non-toxic, chemically stable formulation makes Thermasolv CF4 a reliable choice for immersion cooling, direct cooling, and semiconductor process cooling applications.

Talk to a Specialist