This oil is a 100% synthetic POE blend designed for HFC and HCFC refrigerant gas miscibility in industrial and commercial refrigeration, air conditioning and chiller applications.  It delivers optimum oil return to the compressor while also reducing oil carryover which in turn improves heat transfer. This longer life oil is 100% compatible with elastomers, pants, plastics, and other POE based oils.  It is not designed for ammonia systems.