[PPG Industries] A registered trademark for a series of hydrated silica powders. Hi-Sil® powders have been used in insecticides as driers. They have also been used in paints and papers as thickeners, fillers, and brighteners.
PPG Industries: Website
Sources Checked for Data in Record
- Richard S. Lewis, Hawley's Condensed Chemical Dictionary, Van Nostrand Reinhold, New York, 10th ed., 1993
- Website address 1 Comment: www.ppg.com/copyright.html