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Bolztherm AW-58

BOLZTHERM® AW-58 is a synthetic heat transfer fluid specially designed for heating/cooling applications. Thanks to its particularly low viscosity, the heat transfer fluid remains pumpable even at -30 °C. Furthermore, BOLZTHERM® AW-58 can be used in pressurized systems within a temperature range of 278 °C to 360 °C, ensuring the maximum film temperature of 380 °C is not exceeded. The optimal operating range is between 10 °C and 278 °C. For applications outside this optimal range, please contact us for consultation.

Typical propertiesUnitStandardValue
Operating range[°C]--30 to 360
Max. flow temperature[°C]-360
Max. film temperature[°C]-380
Viscosity at 40 °C[mm²/s]DIN 51562-12.78
Viscosity at 100 °C[mm²/s]DIN 51562-11.08
Density at 20 °C[kg/m³]DIN 51757996
Pour point[°C]DIN ISO 3016<-40
Flash point[°C]DIN EN ISO 2719135
Flash point[°C]DIN EN ISO 2592140
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]-278

More information (downloads):

Safety data sheet:
Safety data sheet

Technical data sheet:
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Technical data sheet