Blasting with glass beads

[OLD AS I]

I had the opportunity to get bags, I mean bags of glass beads used on road line painting, this material is poured on the wet line painting to provide the reflectiveness at night. Has anyone ever used this as a blasting media. Don't know what size the beads are. Would like to know what size nozzle to use and what air pressure to set at, been on Google but seems everything is based on size of bead. Trying to Google glass beads for line painting but not able to get size of beads to use. Any help greatly appreciated, ..... cheers