4 of 39 Silica flour is an extremely fine grade of silica sand that has been used as abrasive cleaners and inert fillers. It is also used in toothpaste, paints, rubber, paper, plastics, cements, road surfacing materials, foundry applications, and In 2013, OSHA estimated that more than million employees in the construction
The premium pool filter sand does not stain and ensures easy maintenance at a lower cost by filtering out dust, algae, suntan lotion, oil, leaves and insects. This ecologically safe sand does not solidify and will help prevent clogging and channeling. Inert and odorless, natural sand is chemical free and backwashes easily and evenly.