Profile: Hangzhou Jingyi Chemical Co., Ltd. is a manufacturer of organic bentonite rheological additives. We are accredited with ISO 9001:2000 and ISO 14001:2004 certifications. Our product line includes rheological additive for solvent based system & water based system, activated clay, bentonite, solvent anti-setting agents and flatting agent. We offer bentonite series such as BK®-035A foundry grade, BK®-101 waterproof engineering grade, BK®-181 drilling mud, BK®-045 for paper manufacturing, BK®-165 and BK®-180 for cleaning softener.