Lupraphen 8105 Difunctional, aliphatic, polyester polyol BASF-Elastogran Polyurethane (PU) - Polyols >> Polyester Lupraphen 8105 is a difunctional, aliphatic, polyester polyol. Lupraphen 8105 is used for the production of polyurethane elastomers. Difunctional, aliphatic, polyester polyol. Used for the production of polyurethane elastomers.