Potassium silicates are used as phosphor binders and settling agents in the manufacture of cathode ray tubes (CRTs). The Electronic Grades of potassium silicate are higher purity products with very low levels of iron, copper and nickel. This higher purity helps to ensure that no clumping or pinholing occurs on the inside of the screen. Sodium silicates are also used to make precipitated silica for wafer polishing.

Applications
Phosphor Binders
Circuit Board Cleaners
Coatings
Wafer Polishing Slurry Feedstock

Recommended Products
KASIL® Electronic Grade Potassium Silicate

Recommended Literature
PQ Potassium Silicates, Bulletin 17-108
Soluble Silicates: Versatile, Inorganic Adhesives, Bulletin 12-30
Bonding and Coating Applications of PQ Soluble Silicates, Bulletin 12-31

Please contact Technical Service more information on this application.