PO Homopolymers

SYNALOX™ Water Insoluble Lubricant Base Stocks are homopolymers of propylene oxide. This family of polyglycols is insoluble in water, but is not compatible with mineral oils. Water Insoluble SYNALOX™ Fluids are particularly used as base stocks in industrial gear oils, mill, and calender lubricants. Dow offers an extensive viscosity range of SYNALOX™ Water Insoluble Fluid grades from ISO 32 to 680.

SYNALOX™ Water Insoluble Lubricant Base Stocks†
Property Molecular Weight Viscosity @ 40°C Viscosity @ 100°C ISO Viscosity Grade Viscosity Index
Unit g/mole cSt cSt  
Test Method †† ASTM D445/446 ASTM D445/446 ISO 3448 ASTM D2270
100-D20 400 32 5 32 65
100-40B 1100 57 10 - 192
100-50B 1300 72 14 68 193
100-D95 2000 143 23 150 191
100-150B 2600 220 38 220 223
100-D240 3800 350 58 320 230
100-D280 4000 440 64 460 254
100-D450 5600 690 108 680 254


†Table contains typical properties, not to be construed as specifications
††Molecular weight was determined by gel permeation chromatography.
®™* Trademark of The Dow Chemical Company ("Dow") or an affiliated company of Dow