Caldera 1
High-Flash Heat Transfer Fluid
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Caldera 1 - High-Flash Heat Transfer Fluid

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Caldera 1 - High-Flash Heat Transfer Fluid

Product Description

Caldera 1 is a high-flash point heat transfer fluid designed for applications where the operating temperature must be below the flash point of the fluid. Caldera 1 utilizes pure base fluids and a proprietary blend of advanced additives. This unique formulation increases fluid performance and lifespan by preventing fluid degradation. Caldera 1 has excellent oxidative resistance, making it ideal for both open and closed systems, with and without inert gas blanketing.


Temperature Range

Caldera 1 Temprange m+s



  • Systems required to operate below flash point
  • Closed and open loop system with a maximum bulk temperature of 644°F (340°C)


Performance Advantages

  • High flash point for added safety - Ideal for systems that need to operate below flash point
  • Resistant against fluid degradation - Contributes to extended fluid life
  • Low varnishing tendencies - Allows for clear operation and greater thermal transfer efficiency
  • Easy disposal - Can be disposed using standard oil recycling services
  • Low volatility - Improves safety and decreases possibilty of pump cavitations
  • Minimal odor
Typical Properties
Caldera 1
Minimum Temperature, °F (°C)
59 (15)
Maximum Film Temperature, °F (°C)
680 (360)
Maximum Bulk Temperature, °F (°C)
644 (340)
Pour Point, °F (°C)
16 (-9)
Flash Point, °F (°C)
531 (277)
Fire Point, °F (°C)
583 (306)
Autoignition Point, °F (°C)
740 (393)
Thermal Expansion Coefficient, %/°C
Thermal Conductivity @ 38°C, W/m-K
Thermal Conductivity @ 260°C, W/m-K
Heat Capacity @ 38°C, kJ/kg-K
Heat Capacity @ 260°C, kJ/kg-K
Distillation Range (ASTM D2887), 10% °C
Distillation Range, 90%
Average Molecular Weight


View complete Caldera Heat Transfer Fluid product information and thermal property data.

Fluid properties are typical results and should not serve as a sole resource for determining the correct fluid for a particular application. Please consult an Isel representative to ensure that the product is the correct choice for the application.

Caldera 1 Applications
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