Samsung approves Chemours immersion cooling fluid
14th 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.
According to Chemours, Samsung successfully qualified the fluid for use with its fourth generation solid state drive (SSD) – a high-performance storage device.
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.
Samsung and PKI are said to have established a robust testing and qualification process to support current and future generation qualifications. The performance testing was carried out using a commercial scale 48U immersion cooling tank, typically used in data centres. The equipment met all compatibility targets, with no sign of degradation, Chemours reports.
The Opteon fluid is said to be the first two-phase immersion cooling fluid approved by Samsung; testing for subsequent generations will begin in the months ahead.
Although no details of the cooling fluid in the Samsung trial have been mentioned by Chemours, the US chemical company has previously been working with an HFO-based two-phase immersion cooling fluid known as Opteon 2P50. This has a GWP of 10 under AR6 and boils at 49°C. It is said to have a PUE approaching 1.
The company has also not officially revealed the identity of the HFO fluid, but Chemours does hold patents on the application of the HFOs 153-10mczz and 153-10mzzy as immersion cooling fluids.
“Collaborating with Samsung has enabled us to get an even deeper understanding of the evolving digital infrastructure needs and unique value of our Opteon two-phase immersion cooling fluid,” said Denise Dignam, Chemours president and CEO.
“As digital infrastructure continues to evolve to meet the demands of AI and high-performance computing, compatibility is king,” said Sungki Lee, project leader of SSD HW reliability engineering team at Samsung Electronics.
“Finding innovative solutions to effectively cool IT hardware, without creating compatibility or performance issues, is no simple task. After nearly a year of testing, the Opteon two-phase immersion cooling fluid met or exceeded all compatibility parameters. We look forward to our continued collaboration as we qualify our generation five and six SSDs.”
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