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Bolztherm ST-3000

BOLZTHERM® ST-3000 is a synthetic heat transfer fluid specially developed for low-temperature applications. Thanks to its particularly low viscosity, the fluid remains pumpable even at -80 °C. In addition, BOLZTHERM® ST-3000 can be used in pressurised systems within a temperature range of 200 °C to 280 °C, provided that the maximum film temperature of 300 °C is not exceeded. The optimal operating range is between -60 °C and 150 °C. For applications outside the optimal operating range, please contact us for consultation.

Typical propertiesUnitStandardValue
Operating range[°C]--80 to 280
Max. flow temperature[°C]-280
Max. film temperature[°C]-300
Viscosity at 40 °C[mm²/s]DIN 51562-12.40
Viscosity at 100 °C[mm²/s]DIN 51562-11.20
Density at 20 °C[kg/m³]DIN 51757895
Pour point[°C]DIN ISO 3016<-100
Flash point[°C]DIN EN ISO 2719>62
Flash point[°C]DIN EN ISO 2592>62
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]->200

More information (downloads):

Safety data sheet:
Safety data sheet (German)

Technical data sheet:
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Technical data sheet (German)