There's a variety of esters on the market but they're not all the same. Product integrity and reliability can vary, unless you choose FR3TM fluid — the original and most trusted natural ester. In fact, we wrote the book on natural esters and set the standards for the industry. From our plants to yours, count on a seamless supply of FR3 fluid to benefit your business and those you serve.
See how FR3TM fluid leaves other natural esters behind.
FR3 fluid promises a consistent formula, a global supply chain and decades of proven performance. That's just the beginning.
Unparalleled experience you can trust.
Used in over
3.5 million
transformers worldwide
Lab & field tested
for nearly
30 years
100% biodegradable
in as little as
10 days
Rely on us when others rely on you.
With FR3 fluid you'll always be able to count on a consistent supply of premium natural ester dielectric fluid. Here's why.
From our plants...
From the specific crops we use, to processing and final product delivery, we're in a unique position to ensure product quality. We control every step.
to yours.
You'll always know your FR3 dielectric fluid is the consistent formula you need for optimum equipment performance.
We wrote the book on natural esters. See more.
Kevin Rapp, co-creator of FR3 fluid, talks about the challenges that the Cargill team set out to solve with invention of FR3 natural ester dielectric fluid.
Learn more about why FR3 fluid is the smartest choice without compromise.
Explore more
Validation
FR3 fluid has been tested and proven by numerous internal tests, third-party research organizations and universities, and customers many times over, and for decades. See why its superiority to mineral oil is beyond question.
Technical Details
Higher flash and fire points (compared to mineral oil). Dielectric strength even at very cold temperatures. Chemical interactions that extend the life of a transformer’s solid insulation. Ultimately and readily biodegradable. See FR3 fluid’s technical details.
Resources
Browse or search our resources to find technical perspectives, white papers, customer-story videos, FAQs, and interactive tools, including our extended life cost savings calculator, SKU reduction calculator, and higher thermal capacity graph.
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