The so-called anti-corrosion coating technology as a whole design of the pollution-free means that the R & D should take into account the various components of the paint itself (film-forming substances, anti-corrosion pigments, solvents and additives), raw materials synthesis and coating production process, Process, construction process, such as the overall pollution-free. For example, the raw materials used are self-friendly, but its production process does not meet the environmental requirements, but also to give up, such as chlorinated rubber; some materials, such as red Dan anti-rust paint excellent performance, but it is toxic, In order to use anti-corrosion coating on the surface of metal, it must first be degreased, degreased and other pretreatment, and the pretreatment process will generally cause pollution to the environment, so that the use of anti-corrosion coatings on the surface of the metal, And the cost is higher, if the use of rust coating, rusted steel surface can be directly coated to rust stability, passivation or conversion; in order to reduce the pretreatment process of environmental pollution, there have been pollution-free blasting process , Such as wet sandblasting technology. In this regard, breaking the traditional concept is very important.