Polytetramethylene Ether Glycol Polyol 650 (PTMEG 650)
CAS Number: 25190-06-1
Empirical Formula: HO(C4H8O)nH
General Description
PTMEG 650 is a specialty liquid difunctional polyether polyol with a softening point of about 11 ˚C. The viscosity of PTMEG 650 is about 160 mPa.s at 40 ˚C. This differentiates PTMEG 650 from PTMEG 1000 and 2000, which are waxy solids at room temperature.
PTMEG 650 is used as the soft (i.e. flexible) segment of high-performance polyurethane, polyurea, and co-polyester and co-polyamide elastomers, where higher durometer hardness values and tensile & tear strengths are required vs. the PTMEG 1000 and 2000 grades. For the multiple uses of PTMEG 650, please refer to the Gantrade TDS.
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