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Immersion Cooling Fluid MORESCO S-3619 is a high-performance dielectric coolant designed for single-phase immersion cooling systems used in high-power, heat-intensive environments. As computing performance continues to increase, efficient heat dissipation has become critical for maintaining system stability, energy efficiency, and equipment lifespan. MORESCO S-3619 is engineered to deliver excellent electrical insulation, superior thermal performance, and long-term operational stability, making it an ideal solution for next-generation cooling applications.

• Provides high electrical insulation to ensure equipment safety and reliable continuous operation

• Excellent cooling efficiency supported by low kinematic viscosity and high thermal conductivity for effective heat transfer

• High flash point and ignition point enhance safety and stability during long-term operation

• PFAS-free, hydrocarbon-based formulation supports environmentally responsible cooling solutions

• Ultra-low pour point enables stable performance across a wide operating temperature range

• Low acidity and high chemical stability help extend coolant service life and reduce maintenance requirements

This immersion cooling fluid is suitable for data centers, high-performance computing (HPC) systems, and semiconductor vacuum equipment, where precise temperature control and electrical safety are essential. Its dielectric properties allow electronic components to be fully submerged while operating safely, improving cooling efficiency compared to conventional air or indirect liquid cooling methods.

Technical Specification – MORESCO S-3619

Specification Item	Value
Flash Point (°C)	214
Ignition Point (°C)	404
Flow Point / Pour Point (°C)	-55
Density @ 15°C (g/mL)	0.94
Kinematic Viscosity @ 40°C	15 mm²/s
Acid Value	< 0.01
Breakdown Voltage @ 25°C	18 kV/mm
Volume Resistivity @ 25°C	10¹⁴ Ω·m
Specific Heat @ 25°C	1.83 kJ/kg·K
Thermal Conductivity	0.144 W/m·K

MORESCO S-3619 is available in 18-liter pails and 200-liter drums, supporting both pilot projects and large-scale cooling deployments.

Contact us today to discuss your cooling requirements or request a quotation, and discover how MORESCO S-3619 can enhance the safety, efficiency, and reliability of your immersion cooling systems.