We are supplying here the Polymer Ring can be used to thin viscous muds, to increase pump ability, or to breakdown problem in-situ clays that are increasing torque and drag. They are most commonly seen in service with a rubber O-ring, though Back- up rings can be used in conjunction with a variety of primary sealing products i.e. energized polymer seals with a spring or O-ring acting as the energizer. The offered Polymer Ring is very useful and safe for use.