Welcome to H & H Clay, Inc.! Family owned and operated since 1993, H & H Clay, Inc. (formerly H & H Environmental, Inc.) has been the premier distributor of sodium bentonite to residential, commercial, and industrial businesses for over 20 years! We specialize in bentonite: a powdered clay used for in water containment, seal bonds, slurry walls, and asphalt emulsions. Our sodium bentonite is primarily mined in Utah and Wyoming, and we strive to provide the best product possible. We distribute nationwide!