Caldera 19
Food-Grade Low-Temperature Heat Transfer Fluid & Cleaner
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Caldera 19 - Food-Grade Low-Temperature Heat Transfer Fluid & Cleaner

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Food-Grade Low-Temperature Heat Transfer Fluid & Cleaner

Caldera 19 - Food-Grade Low-Temperature Heat Transfer Fluid & Cleaner

Product Description

Caldera 19 is a long-lasting food-grade heat transfer fluid and cleaner. It is designed to soften, dissolve, and suspend carbon and varnish deposits within low-temperature heat transfer systems that require a food-grade formulation. This unique formulation can help to restore system performance and efficiency by removing insulating fouling. It is fully-formulated to completely replace an existing fluid, and can be used at temperatures up to 450°F (232°C).

Caldera 19 is an ideal solution for preventative maintenance or for cleaning systems that are experiencing minor varnish or carbon deposits.


Temperature Range

 Caldera19 Temprange



  • Low-temperature food-grade systems
  • System cleaner for fouled systems
  • Closed and open loop systems with a maximum bulk temperature of 450°F (232°C) 


Performance Advantages

  • Meets HT-1 requirements - Ideal for food-processing applications
  • Cleans fouled systems - System can remain in operation during cleaning
  • Continuous  cleaner - Ideal for systems prone to varnishing
  • Odorless


Typical Properties
Caldera 19
Minimum Temperature, °F (°C)
-40 (-40)
Maximum Film Temperature, °F (°C)
489 (254)
Maximum Bulk Temperature, °F (°C)
450 (232)
Pour Point, °F (°C)
-49 (-45)
Flash Point, °F (°C)
284 (140)
Fire Point, °F (°C)
311 (155)
Autoignition Point, °F (°C)
599 (315)
Thermal Expansion Coefficient, %/°C
Thermal Conductivity @ -38°C, W/m-K
Heat Capacity @ -38°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 19 Applications
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