SUNISO® SL lubricants are high-performance, fully synthetic refrigeration fluids formulated for optimal performance of compressors using HFC refrigerants. Manufactured with specially engineered polyol esters (POE), Suniso SL fluids ensure superior miscibility and efficient oil return throughout the system, from the evaporator to the compressor. In addition, Suniso SL fluids retain viscosity very well with the refrigerant dissolved, offering maximum protection to compressor bearings. Suniso SL fluids deliver exceptional thermal stability, making them suitable for applications ranging from low temperature refrigeration systems to high temperature heat pumps.