Iron oxide red is an inorganic compound that is a reddish brown powder that is insoluble in water. It is mainly used as an inorganic pigment for coloring paints, rubber, plastics, buildings, etc. It can also be used as a magnetic material, edible red pigment, analytical reagent, catalyst, and polishing agent. So what factors should we pay attention to when using iron oxide red in the actual construction of coatings and paints, in order to improve the overall brightness?
Factors to be noted in the actual application of iron oxide red in coatings and paints:
(1) Prevent excessive humidity on construction sites: If the humidity on the construction site is too high (relative humidity exceeding 85%), it will make the iron oxide red easily absorb water and turn white.
(2) Before applying the coating material on the surface, it should be thoroughly cleaned and the surface treatment should not contain acid, alkali, oil, wax, water, etc.
(3) If the surface of the coated object is too rough or porous, it needs to be sealed with primer, filled with putty and polished, otherwise it will cause the iron oxide red to lose its cloud luster.
(4) After being exposed to rain or dew, the substrate should be completely dried before construction.
(5) The moisture content should be controlled to avoid mixing water during construction.
Nowadays, with the progress of the times, the use of iron oxide red is becoming more and more diverse, and its application prospects are also becoming broader. It is essential to use iron oxide red in fields such as pigments, catalysis, biomedicine, and others.