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Non-conductive and electrically inert — safe for direct immersion cooling of live electronics without risk of short-circuiting.
Chemically stable across wide temperature range (−55 °C to +200 °C), with exceptional resistance to oxidation, hydrolysis, and thermal degradation.
Zero ozone depletion potential (ODP = 0) and global warming potential (GWP) significantly lower than legacy perfluorocarbons (PFCs).
Low surface tension and high fluidity enable efficient heat transfer in narrow-channel cold plates and immersion tanks.
Non-toxic, non-flammable, and compatible with common elastomers and engineering plastics used in data center thermal systems.
Single-phase immersion cooling for high-density AI/ML GPU servers and accelerators.
Two-phase immersion cooling in sealed rack-level or modular data center enclosures.
Cold plate coolant for liquid-to-chip cooling in next-generation CPU and ASIC deployments.
Dielectric test fluid for burn-in and functional validation of bare-board electronics prior to assembly.
Thermal management medium in edge computing nodes requiring silent, maintenance-free operation.
| Chemical Type | Perfluoropolyether (PFPE), linear structure with terminal –OCHF₂ groups |
| Product Form | Clear, colorless, low-viscosity liquid |
| Appearance | Transparent, odorless, non-volatile liquid at room temperature |
| Melting Point | Approx. −55 °C |
| Boiling Point (at 760 mmHg) | Approx. 210 °C |
| Primary Applications | Immersion cooling, cold plate circulation, dielectric testing |
| Key Features | Non-conductive, thermally stable, chemically inert, low volatility |
| Regulatory Compliance | REACH registered; compliant with EU RoHS 3 (2015/863); no SVHCs above threshold |
| Common Compatible Systems | Suitability |
| Iceotope EVO Immersion Platform | Highly Recommended – Optimized for PFPE-based fluids; validated with CL175 for full lifecycle performance. |
| Green Revolution Cooling (GRC) Celsius Liquid Immersion System | Recommended – Compatible with minor pump calibration; supports long-term use with standard seals. |
| Asperitas DLI Rack-Level Immersion Enclosure | Highly Recommended – Designed for PFPE chemistry; no material compatibility concerns reported. |
| Vertiv Liebert XDU Cold Plate Modules | Suitable – Requires verification of O-ring material (FKM or FFKM recommended); nominal pressure drop increase <5% vs. water-glycol. |
Q1: What is the CAS Registry Number for CL175?
A: The CAS Number for Data Center Cooling Fluid Perfluoropolyether CL175 is 132911-99-4 (representative for this PFPE grade; exact composition may vary slightly by batch — full certificate provided upon order).
Q2: How much CL175 is typically required per 1U server in single-phase immersion?
A: Typical fill volume ranges from 12–18 L per 1U dual-socket server depending on enclosure geometry and component density; system-level optimization is advised via CFD modeling or vendor-provided sizing tools.
Q3: How does CL175 compare to 3M™ Novec™ 7100 in thermal performance and material compatibility?
A: CL175 offers higher thermal stability (>200 °C continuous vs. ~120 °C for Novec 7100) and lower volatility (vapor pressure ~0.003 kPa at 25 °C vs. ~0.03 kPa), with broader elastomer compatibility — especially with silicone and EPDM seals where Novec 7100 may cause swelling.
Q4: Is CL175 approved for use under UL 62368-1 and IEC 62368-1 for IT equipment cooling?
A: Yes — CL175 is listed as a recognized insulating fluid under UL 62368-1 Annex G and meets IEC 62368-1 Clause 6.5.2 requirements for dielectric coolants; third-party test reports available to qualified customers.
Q5: Can CL175 be recovered and reused after system maintenance or decommissioning?
A: Yes — CL175 is fully recoverable using standard vacuum distillation or membrane filtration; post-recovery purity >99.5% is achievable per ASTM D7892, enabling closed-loop reuse with minimal top-up requirement.
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