SFT-50 is fluorocarbon based surfactant that helps with the recovery of aqueous stimulation fluids after a  well treatment particularly in tight reservoirs with low bottom hole pressures

SFT-50 is a non-ionic liquid surfactant, relieves these problems by substantially increasing the fluid recovery rate for all aqueous fracturing fluids, including foamed, gelled and crosslinked systems, as well as matrix acidizing fluids. It is not absorbed on the formation; it stays in the stimulation fluid and foams treatment fluid during the cleanup, thus reducing hydrostatic head and improving lifting capability.