POLYSTYRENE SCRAP
PLUS
COSTYRENEBLAK EQUALS
..Columbian Costyreneblak offers many advan tages. It's C L E A N . . . carbon black predispersed in chips that are relatively dustless. Clean-up time and chance of contamination are at a minimum. You get F A S T E R C O M P O U N D I N G too . . . no pre-milling necessary . . . better dispersion, less rejects. Finally, Costyreneblak means E C O N O M Y - . · usually 25% less carbon black is required with this dispersion than when you use loose carbon black. Get all the facts . . . today.
COLUMBIAN CARBON COMPANY 380 Madison Avenue
N e w York, Ν. Y·
