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Bolztherm WE

BOLZTHERM® WE is a versatile cooling and heat transfer fluid based on ethylene glycol with high-performance corrosion inhibitors and can be used in a temperature range of -50 °C to 170 °C. The contained corrosion inhibitor package is free of amine, borate, phosphate, nitrite, and CMR substances (carcinogenic, mutagenic, reprotoxic). BOLZTHERM® WE meets the corrosion test according to ASTM D 1384. Mixed with water, BOLZTHERM® WE offers reliable and long-lasting protection for closed heating and cooling circuits against frost, corrosion, and deposits. BOLZTHERM® WE is excellently suited for building air conditioning as well as for cooling and heating industrial processes.

Typical propertiesUnitValue
Density at 20 °C[kg/m³]1114
Refractive index at 20 °C[-]1,432
pH value at 20 °C, 33 vol.-% in demineralised water[-]ca. 8
Kinematic viscosity at 20 °C[mm²/s]30
Boiling point at 101 kPa[°C]ca. 170
Surface tension at 20 °C, 33 vol.-% in demineralised water[mN/m]ca. 34
Electrical conductivity at 20 °C, 33 vol.-% in demineralised water[μS/m]ca. 3000

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Safety data sheet:
Safety data sheet

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Technical data sheet