factory iron oxide red for chemical fertilizer 1)iron oxide red for painting,coating,rubber,building matarial etc 2)Iron oxid Iron Oxide Usage1) Used in many types of paints, including anti-rust paint, water-soluble indoor/outdoor paints and oil-based paints.2) Used for dyeing construction materials, such as mosaic bricks, for concrete bricks, pavement, colorful tiles, roofing tiles and man-made ...