Alcupol D-0411 Polypropylene glycol Repsol PU - Polyols SEALANT ADHESIVE Alcupol D-0411 is a polypropylene glycol non-reactive with a molecular weight of 400 without ethylene oxide in its composition. It is recommended for the production of filled and unfilled elastomers, sealants, adhesives. Polypropylene glycol non-reactive without ethylene oxide. Recommended for the production of filled and unfilled elastomers, sealants, adhesives.