Cristobalite • GoreSil® • CristolBrite™

Our Cristobalite, GoreSil and CristolBrite are synthesized from high purity quartz using a solid state, high heat manufacturing process that yields a consistently high conversion and a high purity. C.E.D. uses no additives (mineralizers) in the manufacture of these products.


  • Low Refractive Index
  • Crystal Surface Terminates with Siloxane Groups
  • Rounded Particle Geometry
  • High mohs Hardness
  • High Coefficient of Thermal Expansion
  • Non-reactive, Completely Inert
  • Low Oil Absorption
  • Low Moisture Content


  • No Haze in Clear or Semi-transparent Coatings
  • Low Sensitivity to Moisture Pick-up
  • Excellent Surface for Silane Treatments
  • Less Abrasive than Quartz
  • Provides Coatings with High Apparent Opacity
  • Very Effective as an Pigment Extender
  • Excellent Abrasion, Scrub and Burnish Resistance
  • Withstands Rapid or Frequent Temperature Changes
  • Acid and Alkali Resistance in Formulated Products
  • Performs Well in High Solid, High Viscosity Formulations
  • Ideal for Moisture Sensitive Systems and Formulations

Applications and Industries Currently Served

  • High Precision Investment Casting
    • Precision Dental Appliances
    • Jewelry, via the Lost Wax Process
    • Close Tolerance Electronic Parts
  • Abrasives and Polishing Media
  • Bunker Sand
  • Quartz Countertops
  • Fillers
    • Sealant Filler and Caulk Filler
    • Roof Coating Filler
    • Plastic Filler and Resin Filler
    • Silicone Filler
    • Natural Rubber Filler
  • Paints and Coatings
    • Varnish & Clear Coats
    • Pigment Extenders
    • Architectural Coatings
    • Marine Coatings
  • Powder Coatings