W. R. Grace and Co. is an American chemical business based in Columbia, Maryland. It produces specialty chemicals and specialty materials in two divisions: Grace Catalysts Technologies, which makes polyethylene and polypropylene catalysts and related products and technologies used in petrochemical, refining, and other chemical manufacturing applications, and Grace Materials and Chemicals, which makes specialty materials, including silica-based and silica-alumina-based materials, which are used in commercial products such as sunscreen and in chemical process applications.
