Riteks GCL-4 cement additive is a liquid additive designed to lower equivalent circulating density (ECD) and impart excellent fluid-loss control, high temperature suspension properties, and acid resistance to cement slurries. Riteks GCL-4 additive is successful across a wide range of well conditions (60°F/16°C to 350°F/176.7°C circulating temperature) and is used in both primary casing cementing operations and remedial squeeze work.