Many iron oxide pigments on the market are synthetic blends or “cut” with inert fillers to bulk up volume—leading to poor colour accuracy, reduced workability, and weak UV resistance. Domcrete’s Pure Iron Oxides are uncompromising in quality, offering vibrant, concentrated colour that holds its depth over time and exposure.Ideal for use in GFRC, precast, and decorative concrete, these oxides can be precisely dosed to achieve a wide range of shades. For best results, use 800–900g per 20kg Alpha GFRC or Alpha GFRC/SCC Premix bag. Exceeding this dosage may weaken the mix or alter performance, so care should be taken to stay within recommended levels.For even deeper tones and surface richness, pair with a colour-enhancing sealer like Alpha X to bring out the full potential of your pigmented concrete.
