NuTherm® HT 135 High Performance Heat Transfer Fluid

Key Features and Benefits:

• Excellent heat-transfer performance in both single-phase and two-phase cooling
• Non-flammable (ASTM D56), enabling safe use near electronics and heat sources Low viscosity enhances flow efficiency and reduces pumping energy
• Low surface tension improves wetting, spreading, and thermal contact
• High dielectric strength allows live immersion cooling
• Fast evaporation supports rapid heat removal and vapor-phase cooling Low toxicity, zero ODP, and low GWP (~320)
• Chemically and thermally stable HFE formulation
• Environmentally responsible alternative to PFAS-based fluids, CFCs, HCFCs, and high-GWP refrigerants

Download TDS:

• NuTherm®-HT-135-TDS.pdf

Download (m)SDS:

• NuTherm®-HT-135-US-EN-2026-02-22-sds.pdf

Description:

NuTherm® HT 135 is a non-flammable, low-viscosity, fast-evaporating hydrofluoroether (HFE) heat-transfer fluid engineered for applications requiring excellent thermal control, rapid heat removal, and safe operation around energized electronics. With a boiling point of 61° C, NuTherm® HT 135 offers highly efficient two-phase heat transfer, superior wetting, and effective cooling for sensitive components and closed-loop systems.

Applications: Thermal Management

NuTherm® HT 135 is optimized for:

Two-Phase Cooling

• Immersion cooling for electronics, sensors, and power assemblies
• Vapor-phase cooling systems
• Evaporative cooling loops
• Hotspot mitigation on high-power electronicss

Single-Phase Cooling

• Recirculating chiller systems
• Cold plates & microchannel cooling
• Battery thermal management
• Laser and photonics cooling
• Environmental chamber thermal control

Specialized Uses

• Cleaning + cooling hybrid processes
• Electro-mechanical equipment cooling Equipment needing non-flammable, dielectric-safe thermal fluids

NuTherm® HT 135 Physical Properties

Availability: 5-gallon pails, 55-gallon drums, 275-gallon tote-bins, and bulk tankers.

Shipment: Non-Hazardous for transport via DOT, IMDG, and IATA.

Storage: Store in tightly sealed containers. Protect from moisture and strong bases. Use in well-ventilated areas. Avoid open flames (although the fluid is non-flammable).

Disposal: Dispose of in accordance with local, state, and federal regulations.

Compatibility: Stainless steel, Aluminum, Copper, brass, most plastics and elastomers, ceramics, glass, composites