Silica sand for foundry production must deliver high-integrity casting. Free of defects and with a superior finish. We offer over fifteen grades of round and sub-angular foundry silica sand products for foundry molding and making applications. We provide washed and graded SILICA SAND (WET & DRY) in various grades ranging from AFS 20-120. CHEMICAL ANALYSIS SILICON DIOXIDE (SiO2) 99.3% ALUMINUM OXIDE (AI203) 0.11% CALCIUM OXIDE (CaO) 0.10% IRON OXIDE (Fe2O3) 0.22% MAGNESIUM OXIDE (Fe203)