VOLTRO™ Transformer Oil

Renkert’s Voltro Transformer Oil is a highly refined mineral oil, derived from paraffinic crude. Voltro, which is severely hydrotreated and created specifically for electrical insulating and cooling applications, complies with ASTM D3487 and Doble Tops.

Choose this Voltro Type II inhibited oil for exceptional oxidation stability to help extend the life of transformers while minimizing the need for maintenance.

Voltro advantages

  • conform to corrosive tests ASTM D3487
    method B and CIGRE IEC 62535
  • certified PCB free
  • DBDS free
  • passivator free
  • metal deactivator free
  • silicone free
  • a stable, low moisture oil
  • high flash point
  • exceptional oxidation stability

Applications for Voltro Oils

  • power &distribution transformers
  • switchgear &circuit breakers
  • rectifiers


  • reliable US and global distribution
  • convenient delivery by ship, truck, rail, drums or flexi bags

For help with your application, call 800.423.6457 or email us: