Chemours has launched Opteon™ ZE (R-1234ze(E)) and Opteon™ 515B (R-515B) for stationary chiller applications. The low-GWP refrigerants are intended for large-scale cooling applications, including AI-driven data centers and commercial HVAC systems.
Opteon™ ZE is an HFO-based refrigerant with a GWP of approximately 1 under AR5 and zero ozone depletion potential. It has an ASHRAE A2L classification and is suited for air- and water-cooled chillers, commercial air conditioning, heat pumps and data center cooling applications. Chemours also states that the refrigerant offers high energy efficiency and compatibility with commonly used polyolester oil (POE) lubricants.
Opteon™ 515B is a zero-ODP refrigerant blend consisting of approximately 91.1% R-1234ze(E) and 8.9% R-227ea. It has a GWP of approximately 293 under AR4 and an ASHRAE A1 classification with no flame propagation. Chemours positions the blend for conventional chiller applications and for customers transitioning from higher-GWP refrigerants.
The company said both products are available now in strategic countries, with additional market availability expected to follow in line with market demand.
“AI is reshaping the demands placed on cooling infrastructure, and customers need solutions that can keep pace without compromising efficiency, reliability, or long-term regulatory readiness,” said Joseph Martinko, President, Thermal & Specialized Solutions at Chemours.








