Chemours launches HFO-based two-phase cooling fluids
2nd November 2026
USA: Chemours has launched a range of two-phase direct-to-chip and immersion cooling fluids for high-density data centres.
The new Faizeon brand portfolio of five low-boiling-point dielectric fluids, includes four direct-to-chip fluids and one immersion cooling fluid.
Phase change fluids absorb heat and changes from liquid to vapour, to enable efficient, reliable heat removal from high-density data centres and AI servers. They are used in direct-to-chip cold plates and immersion tanks to cool powerful CPUs, GPUs, and high-wattage racks.
Chemours’ Faizeon 100, 110, 200 and 220 fluids remove heat directly from high-power CPUs and GPUs at the chip level. Faizeon 500 two-phase immersion cooling fluid cools entire servers, transferring heat from every server component.
The company claims that in independent third-party testing, a two-phase direct-to-chip system using Faizeon 200 fluid maintained a graphics processing unit at up to 19°C lower than a single-phase, water-based fluid, while using a lower coolant flow rate.
Chemours has not publicly revealed what these liquids actually are but, after questioning, did confirm to the Cooling Post that this new product line includes HFOs and HFO blends.
Based on its published specification sheets, Faizeon 100 appears to be HFO-1336mzz(Z), Faizeon 110 is HFO-1336mzz(E), and Faizeon 200 and 220 are the non-flammable HFO/HFC blends 515B and 513A, respectively.
Finally, Faizeon 500 is the immersion cooling option previously announced by Chemours as Opteon 2P50. Its specifications suggest that this is the little-known HFO-153-10mczz-E, for which Chemours holds a number of patents.
Chemours claims that its Faizeon fluids provide superior heat transfer, lower cooling-related energy demand and minimal cooling-related water consumption. In addition, they are engineered to support recovery, reprocessing, and reuse.
Earlier this year, Chemours signed a joint development agreement with French server manufacturer 2CRSi following several years of successful testing of Opteon 2P50 with 2CRSi’s Atlantis and Octopus servers.
The previous year, Chemours has revealed that 2P50 had been qualified by Samsung Electronics for use with its fourth generation solid state drive. Performance tests were carried out in collaboration with US liquid cooling tank manufacturer Liquid Stack, and PKI Corporation, a Korean leader in semi-conductors and data centres.
“With Faizeon two-phase liquid cooling solutions, we are applying more than 90 years of thermal-management expertise to help data centres manage higher heat loads while improving performance and dramatically reducing energy and water demand,” commented Chemours’ president and CEO Denise Dignam. “By collaborating across the data centre ecosystem, we are bringing together the expertise, testing, and support needed to confidently deploy two-phase liquid cooling at scale.”
Related stories:
Samsung approves Chemours immersion cooling fluid – 14 August 2025
USA: Chemours has revealed that its Opteon two-phase immersion cooling fluid has been qualified by Samsung Electronics, following tests by the Korean computer manufacturer. Read more…
Chemours joins efforts to advance liquid cooling – 20 May 2025
USA: Chemours has announced a strategic agreement to further demonstrate and develop advanced liquid cooling solutions for data centres alongside other industry leaders. Read more…
Navin Fluorine to produce Chemours’ cooling fluid – 10 May 2025
USA: Chemours has announced a strategic agreement with Indian fluorochemical company Navin Fluorine International to manufacture its HFO-based two-phase immersion cooling fluid. Read more…
Chemours trials immersion cooling fluid – 14 March 2025
USA: Chemours has launched a full-scale product trial of its new two-phase immersion cooling fluid Opteon 2P50 with Japanese IT company NTT Data and engineering firm, Hibiya Engineering. Read more…
Chemours enters immersion cooling market with HFO-based fluid – 31 July 2023
USA: Chemours has developed an HFO-based two-phase immersion cooling (2-PIC) fluid for next-generation computing and electric vehicle technologies. Read more…
