Profile: Zimbabwe Silicates Pvt. Ltd. manufactures sodium silicate products, both liquid and rock. We manufacture sodium silicate rock and gel for detergent and soap manufacturing, foundry binders, briquetting & pelletizing, agglomeration, adhesive, pulp and paper industries, water treatment and building & construction. Sodium silicate is the generic name for a series of compounds derived from soluble sodium silicate glasses. They are water solutions of sodium oxide(Na2O) and silicon dioxide (SiO2) combined in various ratios.