Rxsol ORG - 16 (Flotrol) filtration-control additive is a special starch derivative used in Flo Pro systems. When used in conjunction with a bridging agent such as sized calcium carbonate or sized salt, it provides a thin, pliable, easily removed filter cake. Rxsol ORG - 16 (Flotrol) additive is a non-ionic material especially suited for fluids containing salts or ion-sensitive additives. it material acts synergistically with Rxsol ORG - 16 (Flotrol)additive to enhance the Low-Shear-Rate Viscosity (LSRV) of Flo Pro system .