VoltCool  Dielectric Coolants

Engineered for Environmentally Sensitive Transformer & Distribution Switch Applications


VoltCool Dielectric Coolants are designed specifically for use in high-voltage power applications. 


Unlike competitive dielectric fluids made with mineral oils, Engineered Fluids’ VoltCool products have no sulfur, metals, or other impurities. 


VoltCool fluids deliver safe, reliable, dielectric protection with outstanding high-temperature oxidation stability. 

VoltCool Coolants are compatible with all materials commonly used in power and distribution transformers, switchgear, and circulating cooling systems.

 VoltCool products meet all US and International standards for dielectric fluids. 


They have excellent heat transfer and are effective arc-quenching media. 


Standard maintenance procedures are used with all VoltCool products.


VoltCool Dielectric Coolants are 98% biodegradable, nontoxic, non-halogenated, food grade and 100% ozone safe.


In addition, the use and manufacture of VoltCool Dielectric Coolants release no toxic waste or vapors into the workplace or environment, making Engineered Fluids’ VoltCool coolants easy to transport, use, and clean up.

Technical Specifications for VoltCool Dielectric Coolants
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.
Learn how the naturally occurring corrosive sulfurs in mineral oil destroys your devices

Key Characteristics of VoltCool Dielectric Coolant

Characteristics of VoltCool Dielectric Fluids

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 (www.engineeredfluids.com) ("Operational Characteristics").


  1. Customers should contact Engineered Fluids at support@engineerefluids.com 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 support@engineeredfluids.com 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.