Standard colloidal silica featuring ultra-controlled particle distribution with a large mean particle size:

ULTRA-SOL® S39F colloidal silica is a unique colloidal silica formulation that allows the user to obtain higher removal rates than with standard sodium-hydroxide stabilized colloidal silicas. S39F achieves these rates due the large particle size and high concentration, which enhances mechanical removal. It can be used in final polish operations with adjustments to polishing parameters dependent upon the specific material and process utilized.