Arteco expands low-conductivity coolant options for EV indirect cooling systems

Arteco has expanded its Freecor EV Milli range with the introduction of two new patented low-electrical-conductivity (LECC) coolants, Freecor EV Milli 20 (Si-OAT) and Freecor EV Milli 30 (P-OAT). These additions complement the existing Freecor EV Milli 10, which utilises standard organic acid technology (OAT), thereby completing a trio of formulations designed specifically for indirect cooling systems in battery electric vehicles (BEVs). All three products are monoethylene glycol (MEG)-based and maintain electrical conductivity below 100 μS/cm, meeting stringent standards such as China’s GB 29743.2 and ASTM D8566 for EV coolants. This low conductivity is essential to mitigate the risk of electrical short circuits in high-voltage battery packs, electric motors, and power electronics. The new Si-OAT and P-OAT variants introduce silicate and phosphate-based inhibitors, respectively, offering manufacturers greater flexibility to tailor coolant chemistry to their specific system requirements. These inhibitors differ in terms of longevity and their interaction with aluminium components, which is critical for protecting heat exchangers and maintaining system integrity. Arteco’s coolants also feature a brazing flux compensation package to prevent residue buildup and include organic corrosion inhibitors designed to extend service life. Furthermore, the thermal properties of the range are engineered to support battery longevity and enable faster charging cycles, addressing key performance demands in EV cooling technology. Arteco’s commitment to sustainability is reflected in the availability of all three coolant variants with bio-based or recycled base fluids through its ECO coolant programme. This initiative aligns with broader industry trends towards greener manufacturing and circular economy principles. The new Freecor EV Milli 20 and 30 products are now accessible via Arteco’s established distribution network, signalling the company’s intent to meet growing demand for specialised EV cooling solutions in the rapidly expanding electric mobility sector. By expanding its LECC coolant portfolio, Arteco addresses a critical safety and performance challenge in electric vehicle thermal management. As BEVs become increasingly prevalent, the need for reliable, low-conductivity coolants that safeguard high-voltage systems while enhancing thermal efficiency will only intensify. Arteco’s developments may influence cooling system design choices and encourage further innovation in coolant chemistry, potentially setting new benchmarks for the industry.