CoolFluid  Dielectric Coolant

Single-phase, Liquid Immersion Cooling for Hobbyists


CoolFluid Dielectric Coolant has been specifically formulated for use by hobbyists and educational users for simple robotic and electric motor cooling in drones and small vehicles using arduino and raspberry pi for controls.  CoolFluid is safe for use at home and in the classroom and is materially compatible with education robot kits including: mBot-STEM Educational Robot Kit for Kids, Thymio2, Robotics Dream, MOSS, and Lego Mindstorms
CoolFluid Dielectric Coolant is 98% biodegradable, non-toxic, non-halogenated, non-corrosive, food grade and 100% ozone safe. In addition, the use and manufacture of CoolFluid Dielectric Coolants release no toxic waste, vapors, or smell into your home, office, or workplace. 
CoolFluids is available in 4L and 20L containers. 
Educator's discount is available upon request.
Technical Specifications for CoolFluids Dielectric Coolants
Materials Safety Data Sheets for all products
Access our Master Materials Compatibility Guide
Dr. Sundin explains how our Dielectric Coolants are vastly different and more efficient than Mineral and White Oils in electronic cooling applications.
Learn how the naturally occurring corrosive sulfurs in mineral oil destroys your devices

Key Characteristics of CoolFluid Dielectric Coolant

Engineered Fluids – Standard Operational Characteristics Warranty for Dielectric Coolants


Engineered Fluids (“EF”) warrants that its Dielectric Coolants ("Products"), upon receipt by the end-user in new, sealed, unopened containers bearing the original Engineered Fluids product labeling including date of manufacture and lot number, shall meet the operational characteristics for said Product as published on the Engineered Fluids website ( ("Operational Characteristics").


  1. Customers may, within five (5) days of receipt of the Product, contact Engineered Fluids at and notify Engineered Fluids of a suspected defect in the Product.

  2. End-user will then provide a 500cc sample of the Product Engineered Fluids product to EF for analysis and testing. EF will conduct testing to determine if the Products meet the Operational Characteristics and provide back to Customer a written report including the test results to Customer.

    1. Contact Engineered Fluids at  + or and provide the following Information:

      1. Customer Name

      2. Support Contact Name, email and phone number

      3. Location Name and physical address

      4. Take a 1x 500cc sample of the Product from the container to be tested.

      5. The sample must be taken and sent air freight to Engineered Fluids in a clean, uncontaminated, sealable glass container.  Engineered Fluids can sell and provide such containers to end-user upon request.

  3. Remedy - If determined by Engineered Fluids that the sampled Product does not meets its published Operation Characteristics, Engineered Fluids entire liability to the Customer shall be at EF’s sole discretion to:

    1. rebate to customer the full purchase price for the quantity of Product purchased, including any shipping costs, and to arrange either the return the Product to Engineered Fluids or for its safe disposal; or

    2. replace the defective Product with new conforming Product.