Coal tar epoxy paint film in some of the chemical anti-rust paint, or with a film or a reaction product of water, corrosion of the steel substrate can play a role, including passivation. Basic pigment with an oily film-forming reactants can generate metal soap, such as red lead, nitrous oxide lead cyanamide lead, basic lead chromate, lead-calcium and basic lead sulfate. Metal soap and water after contact with its breakdown products can play a role in inhibition. Further, the film formation of metal soaps improves the shielding effect on the environment. Basic pigment to make paint film and metal corrosion interface remains slightly alkaline, also play a role in anti-corrosion. The main features of coal tar epoxy anti-corrosion coatings are as follows: (1) a high solid content, can be made thick coating, a dry film thickness greater than 100μm; (2) the excellent mildew resistance, water resistance, impermeability, resistance to chemical corrosion , oil resistance; (3) coating with excellent mechanical properties, high hardness, impact resistance, wear resistance and good adhesion. Stable coating performance, long service life; (4) the cost of relatively inexpensive coating, rust under the same conditions of total cost (including transportation, processing, loss, etc.) than all the anti-corrosion materials, preferably their technical and economic overall performance, applicable competitive situation; (5) can be used with all types of shop primer matching of inadequately rust surface with good wettability, to facilitate construction. Natural Cure coating without heating equipment, can mechanization and semi-mechanization or manual application. Easy and flexible features of construction, especially suitable for pipeline corrosion and fragmented distribution network mending, mending, shaped parts and non-structural parts corrosion; (6) through the accumulation of 20 years of experience, has developed a set from design to construction technical standards, the technology is mature and reliable. Contact: Manager Li Phone: 1350897104024 hour online QQ: 3188996760 24-hour online QQ: 3256874341 micro letter: 15910017673 (welcome to add) Address: Jining City, Shandong Province High-tech Zone open the first East Road