Skip to content
heat transfer fluids
  1. Home
  2. Products
  3. Bolztherm CT-7

Bolztherm CT-7

BOLZTHERM® CT-7 is a synthetic heat transfer fluid specially developed for low-temperature applications. Thanks to its particularly low viscosity, the fluid remains pumpable even at -160 °C. In addition, BOLZTHERM® CT-7 can be used in pressurised systems within a temperature range of 69 °C to 100 °C, provided that the maximum film temperature of 120 °C is not exceeded. The optimal operating range is between -150 °C and 0 °C. For applications outside the optimal operating range, please contact us for consultation.

Typical propertiesUnitStandardValue
Operating range[°C]--160 to 100
Max. flow temperature[°C]-100
Max. film temperature[°C]-120
Viscosity at 40 °C[mm²/s]DIN 51562-10.55
Viscosity at 100 °C[mm²/s]DIN 51562-10.40
Density at 20 °C[kg/m³]DIN 51757654
Pour point[°C]DIN ISO 3016<-160
Flash point[°C]DIN EN ISO 2719<0 °C
Flash point[°C]DIN EN ISO 2592<0 °C
Acid number[mg KOH/g]DIN ISO 6618≤ 0.2
Carbon residue[wt.-%]DIN EN ISO 10370< 0.1
Initial boiling point at 1013 mbar[°C]-69

More information (downloads):

Safety data sheet:
The safety data sheet is available on request.
Request

Technical data sheet:
Please enter your e-mail address to download the technical data sheet.
Technical data sheet (German)