Go back to directory.Add to Address Book. Western Colloid Western Colloid Contact: Gregory Hlavaty Work 654 E. 60th St. Los Angeles CA 90001 work Work Phone: (760) 525-0884work Work Email: ghlavaty@westerncolloid.comINTERNET Website: Western Colloid Categories: RCAC Associate / Silver Sponsor, RCAC Sponsor Updated 1 month ago.