17 SOUND INSULATING, SOUND ABSORBING, SOUND DAMPING, AND/OR SOUND AND VIBRATION ISOLATING MATERIALS AND ARTICLES MADE THEREOF, INCLUDING: LEADED VINYL, AND CURTAINS, PIPE WRAPPING, AND SURFACE COVERINGS MADE OF LEADED VINYL; FLEXIBLE SOUND ABSORBING FOAM, AND SURFACE COVERINGS MADE OF SUCH FOAM; VINYL-AND GRAPHITE-DAMPING MATERIAL AND SHEETS OF SUCH MATERIAL FOR COVERING SURFACES; SPRAYABLE DAMPING MATERIALS; ELASTOMERS AND MOUNTINGS INCORPORATING ELASTOMERS; AND PANELS MADE OF A COMBINATION OF SOUND ABSORBING AND SOUND INSULATING MATERIALS