Lupranol 1000 Polypropyleneglycol BASF-Elastogran PU - Prepolymers >> Polyether >> PPG Lupranol 1000 is a polypropyleneglycol with an average molecular weight of 2000. Lupranol 1000 is used for the production of polyurethane foams and elastomers. Polypropyleneglycol. Used for the production of rigid polyurethane elastomers.