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Fluids / Propylene glycol, 20 % by volume

Dynamic viscosity of propylene glycol, 20 % by volume vs temperature

A 20 % by volume propylene glycol solution, freeze protection to about −7 °C — the corrosion floor: any leaner and the inhibitors are too dilute to trust.

Dynamic viscosity in mPa·s, from -5 to 100 °C. The chart and the table below are the same numbers; the table is the one you can copy.

Dynamic viscosity mPa·s
Dynamic viscosity of propylene glycol, 20 % by volume in mPa·s, from -5 to 100 °C-5 °C — 4.98 mPa·s0 °C — 4.05 mPa·s5 °C — 3.34 mPa·s10 °C — 2.79 mPa·s15 °C — 2.36 mPa·s20 °C — 2.02 mPa·s25 °C — 1.74 mPa·s30 °C — 1.52 mPa·s35 °C — 1.34 mPa·s40 °C — 1.18 mPa·s45 °C — 1.06 mPa·s50 °C — 0.95 mPa·s55 °C — 0.86 mPa·s60 °C — 0.78 mPa·s65 °C — 0.71 mPa·s70 °C — 0.66 mPa·s75 °C — 0.6 mPa·s80 °C — 0.56 mPa·s85 °C — 0.52 mPa·s90 °C — 0.49 mPa·s95 °C — 0.45 mPa·s100 °C — 0.43 mPa·s0.511.522.533.544.50102030405060708090100Temperature (°C)Dynamic viscosity (mPa·s)
Propylene glycol, 20 % by volume — everything else at 20 °C (default)
Density1,020.2 kg/m³
Specific heat3.973 kJ/(kg·K)
Thermal conductivity0.483 W/(m·K)
Dynamic viscosity by temperature
Temperature (°C)Dynamic viscosity (mPa·s)Row
04.05published
102.79published
202.02published
301.52published
401.18published
500.95published
600.78published
700.66published
800.56published
900.49published
1000.43published

Rows marked published land exactly on a source anchor and are the tabulated figure. The rest are this library’s interpolation between the two anchors either side — good enough to design with, and said out loud so you can decide that for yourself.

Dow, Engineering and Operating Guide for DOWFROST and DOWFROST HD, SI tables, by volume; typical values for inhibited product · validated -5 to 100 °C · interpolated between 22 published anchors (values held, not extrapolated, past the ends)

← Propylene glycol, 20 % by volume: every property at one temperature

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