Iron Oxide Red Red iron oxide pigment is one of the oldest mineral pigments used by man. These natural Iron Oxide Red are known for their durability and are considered a permanent pigment that is light, alkali, chemical and weather resistant. Iron Oxide Red Applications Iron oxide red is widely used in paints and coatings, cement products such as paving stones, concrete blocks, roof tiles, bricks, slurries, etc., asphalt, sports tracks, plastics and rubber, leather industry, paper and pulp, terraces, construction building materials, glazed ceramics, and ceramics.