Cargill's Dielectric Fluid Product Portfolio
Advanced transformer fluids engineered for performance, reliability and fire safety
Cargill’s suite of transformer dielectric fluids — including FR3™ fluid, FR3r™ fluid, and SE3™ fluid — represents an advanced portfolio of natural and synthetic ester solutions for the industry. The fluids are designed to enhance transformer performance while reducing environmental impact by delivering excellent fire safety (K-class fluids), biodegradability, and reliability across diverse applications. Whether leveraging the proven performance of natural esters or the tailored properties of synthetic esters, Cargill’s dielectric fluids empower utilities and manufacturers to meet today’s demanding energy challenges with confidence.
Dielectric fluid solutions
Innovative solutions trusted by utilities worldwide
FR3™ fluid
Derived from >99% soybean oil, FR3 fluid is the original and most trusted natural ester. Used for nearly 30 years and in 3.5+ million transformers worldwide.
- 100% biodegradable in as little as 10 days*
- 20% more load capacity**
- 2X the flash and fire point **
- 0 reported fires
FR3r™ fluid
Derived from >99% rapeseed oil, this K-class natural ester fluid delivers performance and reliability.
- Low pour point, -33º C
- Readily biodegradable according to OECD 301 B
- 2X the flash and fire point **
- Up to 140°C top fluid operating temperature
SE3™ fluid
Advanced synthetic ester engineered to meet the demands of specialized transformer applications, ideal for free breathing transformers.
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K-Class fluid with >300°C fire point
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Pour point down to -50°C
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Optimized for oxidative stability
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Readily biodegradable according to OECD 301 B
Looking for more information?
Contact us to learn about our dielectric fluid solutions
Reach out to our experts and trust our decades of experience to discuss how to optimize your transformer with Cargill’s FR3 fluid, FR3r fluid or SE3 fluid.
*According to OPPTS 835.3100
**Compared to mineral oil
The products and services described on this website may not be available in all jurisdictions or to all persons.