Rust converter yang Turco. Zinc Chromate actually is a Top Quality anti-corrosion agent that is added to paints/coatings. It was developed by Ford Motors in the early 20th century. It is intensively utilized in US Military vehicles and civilian aircrafts.
But due to health hazard, the use of Zinc Chromate is regulated now in the US.
The Filipino based manufacturer of Anzhal, has products with Zinc Chromate, see