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    • Therminol® SP – proven thermal oil for temperatures up to 300°C

    Therminol® SP is a unique synthetic fluid that ensures reliable, consistent heat transfer performance over a long service life at recommended mass temperatures of up to 300°C.

    Therminol® SP fluid is designed for use in non-pressurized low-pressure, indirect heating systems. It delivers efficient, dependable, uniform process heat with no need for high pressures. 

    Temperature range

    -28° to 300°C

    Recommended bulk temp °C

    300

    Max. extended bulk temp °C

    315

    Max. film temp °C

    335

    Boiling point °C @ 1013 mbar

    351

    Pumpability °C @ 300 mm²/s (cSt)

    8

    Pour Point °C

    -54

    Flash Point °C (ASTM D92)

    193

    Autoignition Temp °C (DIN 51794)

    382

    Density @ 20°C (kg/m³)

    872

    Kinematic viscosity @ 40°C (mm²/s)

    19

    Water Class

    WGK 1

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    Your benefits of using Therminol® SP in your thermal oil systems

    • Long lifespan – Therminol® SP offers an excellent cost-performance ratio over the entire life of the fluid, especially compared to traditional mineral oil-based heat transfer fluids.

    • Outstanding resistance to fouling – as a synthetic fluid, Therminol® SP withstands the effects of oxidation 10 times better than mineral oils, resulting in less oxidation and solids formation. This provides significant performance advantages, especially in thermal oil systems without nitrogen blanketing.

    • Superior low-temperature pumpability – Therminol® SP remains pumpable at temperatures as low as -28°C, unlike some mineral oils that fail to pump below -7°C. With Therminol® SP, your heat transfer fluid system can start up quickly and easily.

    Discover a wide range of the most common applications for Therminol® SP:

    • Oil and gas processing

    • Natural gas purification

    • Asphalt processing and storage

    • Gas-to-liquid (GTL) applications

    • Plastics and polymer manufacturing

    • Plastic injection molding

    • Organic rankine cycle (ORC)

    • Biofuel production

    • Fiberboard (MDF)

    • Water desalination