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Bolztherm SW-50

BOLZTHERM® SW-50 is suitable for use in the liquid phase in closed, non-pressurised heat transfer systems with forced circulation in a temperature range of -60 °C to 200 °C, provided that the maximum film temperature of 230 °C is not exceeded. The optimal operating range is between 50 °C and 180 °C. For applications outside the optimal operating range, please contact us for consultation.

Typical propertiesUnitStandardValue
Operating range[°C]--60 to 200
Max. flow temperature[°C]-200
Max. film temperature[°C]-230
Viscosity at 40 °C[mm²/s]DIN 51562-14.00
Viscosity at 100 °C[mm²/s]DIN 51562-11.95
Density at 20 °C[kg/m³]DIN 51757919
Pour point[°C]DIN ISO 3016<-100
Flash point[°C]DIN EN ISO 2719>120
Flash point[°C]DIN EN ISO 2592>120
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]->220

More information (downloads):

Safety data sheet:
Safety data sheet (German)

Technical data sheet:
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Technical data sheet (German)