Inge knows his stuff, or you could according to the BMW K100 manual:
Oil sump - installing The sealing faces on the crankcase bottom section must be free of oil and grease. Apply a thin coat of Three Bond 1207 B to the sealing faces. Offer up the oil sump. Uniformly tighten the oil sump retaining screws (arrows). Install the drain screw with a new sealing ring. Tightening torque: Retaining screws 7 ± 1 Nm Drain screw 32 ± 4 Nm