AmpCool  Dielectric Coolants

Engineered for Liquid Immersion Cooling of Batteries, Electric Motors & EMCs


Engineered Fluids’ AmpCool Dielectric Coolants with optional Lubrication solve the high-performance cooling, insulation, and lubrication challenges posed by today’s high powered electric vehicle, aircraft, and marine propulsion systems, and the accompanying power storage and motor controller technologies.
Unlike other products, AmpCool has been specifically formulated to allow eVehicle engineers to use a single fluid to fulfill the multiple roles of coolant, lubricant, and hydraulic fluid within the system.  This multi-role flexibility reduces cost and complexity in all systems, while reducing supply chain challenges through SKU reduction.  With a 25 year shelf-life and a 10 year operating life, AmpCool dramatically reduces ongoing maintenance costs in all environments.
AmpCool Dielectric Coolants are materially compatible with all materials commonly used in electric motors, hydraulic systems, and with all battery chemistries.
Full immersion cooling of battery cells eliminates heavy and complex heat spreaders and water coolant containment housings, while providing increased flexibility in battery cell placement.  These simplifications radically reduce weight and cost, providing dramatically increased thermal conductivity at the tab and cell level.  AmpCool's density is 80% of water providing additional weight savings, resulting in extended vehicle range.  Coupled with better overall cell performance and faster charging times AmpCool provides significant benefits across the board. 
Technical Specifications for AmpCool AC-1XX Dielectric Coolants
Technical Specifications for AmpCool AC-2XX Dielectric Lubricants
Excel spreadsheet with important product characteristics over the operating temperature range
Materials Safety Data Sheets for all products
Access our 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.
IEEE Research Paper: Thermal Management of Li-Ion Batteries using AmpCool Dielectric Coolant
AmpCool AC-1XX - ENG - Web Data Sheet (A
AmpCool AC-2XX - ENG - Web Data Sheet (A
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. Customer should 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.