1. In the building materials industry, it is mainly used for colored cement, colored cement floor tiles, colored cement tiles, imitation glazed tiles, concrete floor tiles, colored mortar, colored asphalt, terrazzo, mosaic tiles, artificial marble and wall painting, etc.;
2. Used for coloring and protecting substances of various paints, including water-based interior and exterior wall paints, powder paints, etc.; also suitable for various primers and top coats of oily paints including epoxy, alkyd, amino, etc.; can also be used for toy paints , decorative paint, furniture paint, electrophoretic paint and enamel. Iron red primer has anti-rust function, can replace high-priced red lead paint, and save non-ferrous metals.
3. Used for the coloring of plastic products, such as thermosetting plastics and thermoplastics, and the coloring of rubber products, such as automobile inner tubes, aircraft inner tubes, bicycle inner tubes, etc.
4. Used for advanced fine grinding materials, used for polishing of precision hardware instruments, optical glass, etc. High-purity is the main base material of powder metallurgy, used to smelt various magnetic alloys and other advanced alloy steels. It is obtained by calcining ferrous sulfate, iron oxide yellow or scrap iron at high temperature, or directly from liquid medium.