YOUR TRANSFORMER DESERVES THE BEST
Choose Performance, Choose Reliability
IsoTec is dedicated to providing premium, ester-based dielectric fluids that ensure your critical systems run smoothly and reliably. By choosing IsoTec, you’re investing in reliability and efficiency, powering industries that drive the future.
Your Partner for Ester-Based Transformer Fluids
IsoTec specializes in premium, cost-efficient ester-based transformer fluids for railway sector, energy suppliers, transformer manufacturer, and industrial sector. Trusted for our high-performance solutions, we help businesses enhance efficiency and reliability.
With a focus on innovation, IsoTec is committed to delivering top-quality products that meet the needs of today’s industries.
Choose IsoTec and make your operations more efficient, reliable, and future-ready.
IsoTec
At IsoTec, we understand the critical role that reliable, high-performance transformer fluids in powering essential infrastructures, especially for subways, railway sector, and large-scale energy suppliers. Our products are engineered for durability and efficiency, ensuring the smooth operation of high-demand machinery and reducing downtime. With our commitment to quality, innovation, and cost-effective solutions, IsoTec helps you minimize operational costs and maximize performance. Choose IsoTec for special know-how that meets the strict requirements worldwide in terms of safety and reliability.
IsoTec
At IsoTec, we understand the critical role that reliable, high-performance lubricants and energy solutions play in powering essential infrastructures, especially for subways, railway stations, and large-scale energy suppliers. Our products are engineered for durability and efficiency, ensuring the smooth operation of high-demand machinery and reducing downtime. With our commitment to quality, innovation, and cost-effective solutions, IsoTec helps you minimize operational costs and maximize performance. Choose IsoTec for specialized expertise that meets the rigorous demands of industrial energy and lubrication needs.
Solar & Wind Power
Exploring efficient turbine designs and optimal site selection to maximize wind power output, reduce fossil fuel dependence, and lower environmental impact.
Demonstrating solar energy’s potential as a primary clean power source, focusing on photovoltaic efficiency, energy storage, and emissions reduction.
Advancing transformer technology to improve energy distribution, reduce losses, and support renewable energy integration for a stable, sustainable power grid.
Some Of Our Customers Sectors
Renewable Energy
Distribution Transformers
Power Transformers
Retrofilling
Retrofilling an existing transformer with Isotec upgrades the unit while offering multiple benefits: it reduces the substation footprint by enabling a more efficient installation of transformers in limited space—all without the need to invest in a new transformer
Marine
Isotec is the preferred solution for marine and water-related transformer applications—including offshore wind, ships, sub-sea assets, and protected water ways excellent lubricity for compact transformer designs, ready biodegradability according to OECD 301, and reliable performance that can reduce maintenance costs.
Industry
IsoTec is increasingly used by industrial customers—factories, warehouses, hospitals, and retail facilities—offering fire safety, superior moisture tolerance, reduced maintenance and insurance costs – supporting business continuity.
IsoTec products are supplied to customers worldwide outside Germany. We do not offer or sell IsoTec products within Germany.

