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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.

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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.

 

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Used in over

3.5 million

transformers worldwide

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Lab & field tested 

for nearly

30 years

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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.

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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.

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FR3 natural ester dielectric fluid, for a long-lived power transformer

 

Learn more about why FR3 fluid is the smartest choice without compromise.

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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.

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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.

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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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FR3 from Cargill

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