Immersion Cooling Fluid for AI Data Centers
Single-Phase Dielectric Coolant — Developed by MORESCO (Japan)
Immersion cooling fluid is a non-conductive dielectric coolant in which servers operate fully submerged, removing heat directly from AI data center hardware. Developed by MORESCO (Japan) and supplied in Taiwan by HLJH, now open for joint validation with data center operators.
Single-phase immersion cooling is a thermal management method in which servers are fully submerged in a dielectric (electrically non-conductive) fluid that stays in its liquid state throughout the cooling cycle. Heat generated by CPUs, GPUs, and other components transfers directly into the surrounding fluid, which is then circulated through heat exchangers — no fans, no phase change, no boiling. Compared with two-phase systems, single-phase immersion offers simpler fluid handling, minimal fluid loss, and easier maintenance, making it a practical choice for high-density AI and HPC deployments.
What Is Single-Phase Immersion Cooling?
Single-phase immersion cooling is a thermal management method in which servers are fully submerged in a dielectric (electrically non-conductive) fluid that stays in its liquid state throughout the cooling cycle. Heat generated by CPUs, GPUs, and other components transfers directly into the surrounding fluid, which is then circulated through heat exchangers — no fans, no phase change, no boiling. Compared with two-phase systems, single-phase immersion offers simpler fluid handling, minimal fluid loss, and easier maintenance, making it the mainstream choice for high-density AI and HPC deployments.
| Application | Why Immersion Cooling |
|---|---|
| AI training & inference clusters | Handles rack densities beyond the limits of air cooling |
| High-performance computing (HPC) | Uniform heat dissipation for sustained full-load operation |
| Semiconductor manufacturing equipment | Stable thermal control for heat-sensitive precision processes |
| Edge & containerized data centers | Quiet, compact, fan-less cooling in space-constrained sites |
Key Features & Benefits
- High Electrical Insulation:Helps maintain equipment safety and operational reliability.
- Outstanding Cooling Efficiency:Low viscosity and excellent thermal conductivity enable efficient heat transfer.
- Superior Stability:High oxidation stability with high flash point and ignition point for safe long-term operation.
- PFAS-Free & Hydrocarbon-Based:Environmentally conscious formulation, free from fluorine-based compounds.
- Ultra-Low Pour Point:Suitable for extreme environments and wide operating ranges.
Applications
● Immersion cooling liquid for data centers
● Liquid cold plate cooling fluid
● Coolant for semiconductor vacuum equipment
Packaging
- Pail: 18 Liters (5 Gallon)
- Drum: 200 Liters (50 Gallon)
Joint Testing & Validation Program
Immersion cooling performance depends on each facility's tank design, server configuration, and heat exchange architecture. That is why HLJH works with data center operators, system integrators, and server manufacturers to run joint validation programs, evaluating fluid performance and material compatibility under your actual operating conditions.
Validation support is backed by HLJH's in-house laboratory in Taiwan and MORESCO's R&D resources in Japan, covering fluid evaluation planning, compatibility assessment, and ongoing fluid analysis.
If you are planning immersion-cooled AI infrastructure, contact us to discuss a pilot evaluation.
Frequently Asked Questions (FAQ)
Q1: What is the difference between single-phase and two-phase immersion cooling?
In single-phase systems the fluid always stays liquid and is circulated through heat exchangers. In two-phase systems the fluid boils at component surfaces and condenses elsewhere. Single-phase designs offer simpler handling, lower fluid loss, and easier maintenance, which is why they are the mainstream choice for AI data centers today.
Q2: Why does PFAS-free matter for immersion cooling fluids?
Many legacy dielectric coolants are fluorine-based and fall under growing PFAS regulations worldwide. A hydrocarbon-based, PFAS-free fluid avoids this regulatory risk while providing the electrical insulation and thermal performance immersion cooling requires.
Q3: How do I evaluate whether immersion cooling fluid suits my facility?
The right setup depends on your server specifications, the number of servers to be cooled, and the installation space available at your site. Share these details with us and we will arrange a pilot evaluation tailored to your facility..
🌏 Your Global Partner in Metalworking Fluids
Hai Lu Jya He is a trusted Taiwan-based manufacturer specializing in high-performance industrial lubricants with a core commitment to reliable global logistics and on-time delivery. With established distribution networks in the Philippines and Malaysia, we proudly serve a diverse international clientele across India, Vietnam, Thailand, China, Peru, and Colombia.
We are actively expanding our global footprint into the Mexico, USA, and European markets, ensuring our ISO 9001:2015 certified operations meet the highest international quality standards. Backed by full technical support and comprehensive documentation (SDS, TDS, RoHS), we provide our global partners with the consistency, efficiency, and compliance required for modern precision manufacturing.
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Last Updated: 2026-08-13
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Details
Immersion Cooling Fluid for AI Data Centers - Immersion Cooling Fluid for AI Data Centers | Certified Cutting Oil & Metalworking Fluid Supplier | HLJH
Based in Taiwan, HAI LU JYA HE CO., LTD is a leading manufacturer and supplier of premium industrial lubricants such as Immersion Cooling Fluid for AI Data Centers. Our comprehensive product line features metalworking fluids, including soluble, semi-synthetic, synthetic, and neat cutting oils, alongside rust preventive, slideway, and hydraulic oils. With advanced manufacturing capabilities, we produce up to 150 tons of high-quality cutting fluids every month.
Hai Lu Jya He upholds the principles of integrated production-sales and environmentally responsible operations. Our processes apply Japanese bio-stabilization technology, and our role has evolved from pure product sales to authorized distribution and joint Taiwan-Japan technical cooperation and development. HLJH provides one-stop solutions for industrial oils and cutting fluids, covering eco-friendly cutting oil, customized oil production, and waste oil treatment (Taiwan only). Committed to green, environmentally responsible operations, HLJH owns its proprietary brand WILL and is MORESCO (Japan)'s authorized distributor in Taiwan, with select products co-developed through joint Taiwan-Japan technical cooperation — one of the few Taiwan companies with this kind of overseas production technology partnership.
HLJH has been offering customers high-quality metalworking oils and fluids, both with advanced technology and 44 years of experience, HLJH ensures each customer's demands are met.


