The products have been developed as successors to TYFOXIT® and offer a number of advantages. Most significantly is their vastly improved viscosity at low temperatures. This increases the efficiency of existing refrigeration systems by reducing energy costs, and enables new circuits to be designed in smaller dimensions. TYFOXIT® F15–F50 contain specific corrosion inhibitors, stabilizers and buffers, and are free of borax, nitrites, phosphates and amines. Their long-term corrosion protection covers all materials currently used in refrigeration technology such as steel, stainless steel grades, cast iron, brass, copper, red brass, bronze, and aluminium.