We make your perfect water.
We make your perfect water.
Heat transfer fluids

coracon® heat transfer fluids
High heat capacity. Environmentally friendly. Frost-proof.

A heat transfer fluid is a medium that transports heat in a heating or cooling circuit from a higher temperature location to a lower temperature location and vice versa. Depending on the application and temperature range, there are different designations such as heating medium, solar liquid, coolant, cooling brine or refrigerant.
Due to its very high specific heat capacity of approx. 4.2 kJ/kg, water is a very good heating/cooling medium.
The problem: Pure water as a heat transfer fluid in combination with oxygen would lead to corrosion in the system. In addition, it would freeze at minus temperatures, expand and destroy the pipes. A specially treated water is therefore needed. These heat transfer fluids need a high heat capacity, must not freeze in winter, must protect the pipes from corrosion, must be compatible with all metal and sealing materials and must be non-flammable and non-toxic. The liquid must also be resistant to ageing.

Solar systems                              

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Geothermal energy 

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coracon® products from aqua-concept offer you heat transfer fluids for a wide variety of applications with effective combinations of active ingredients, low product consumption and environmentally friendly active ingredients.

Requirements for heat transfer fluids

  • High specific heat capacity
  • Large heat transfer coefficient
  • High thermal conductivity
  • Sufficiently low freezing/solidification point
  • Sufficiently high boiling point/decay point
  • Low viscosity
  • Non-flammable or explosive
  • Non-toxic

Service Center

We can help quickly and competently.

Your contact: 
Hark Kemlein-Schiller
Head of Heat Transfer Fluids Competence Center
Phone: +49 (0) 89 899 369-130
E-mail: h.schiller@aqua-concept-gmbh.eu