Lupranat M 10 R Diphenylmethane-4,4'-diisocyanate BASF-Elastogran Polyurethane (PU) - Prepolymers >> Isocyanate >> MDI based Lupranat M 10 R is a solvent-free product based on diphenylmethane-4,4'-diisocyanate (MDI) containing oligomers of high functionality and isomers. The average functionality is about 2.6. Lupranat M 10 R is used for the production of fillers, casting material, binders and adhesives. Solvent-free product based on diphenylmethane-4,4'-diisocyanate (MDI) containing oligomers of high functionality and isomers. Used for the production of binders.