"lOO's of silicas"-only one Cab-o-sil So you've seen rrundreds oif silicas before and they're all alike, except thait some a r e finer than others? Then it's time you tried Cab-o-siL- Cab-o-sil is unlike any other silica you've ever usecl. It is different, first of all, because it's muade differently. No other v silica w e know of is manufactured Like Cab-o-sil — in a hot, gaseous environment b y a fLame process — instead of by t h e usual aqueous precipitation method. This u n usual process makzes Cafc-o—sil properties superior t o those of other silicas. Not only does Cab-o-sil have high chemical pur-ity, extreane fineness (0.015—0.020 micron) and enormous extermal surface area (175-200 m 2 /gm), b u t it is slso anhydrous and particulate. I t is not like precipitated silicas» silica gels, silica aerogels, or other silicas with which y o u are farniliar. It functions differently an