The outer pipe to pipe corrosion 3pe ep antiseptic adhesive tape products are mainly polyethylene anticorrosion tape, polypropylene fiber corrosion tape, polyethylene anticorrosion tape 660, coal tar epoxy cold tapes, including polyethylene and polypropylene anticorrosion tape acrylic fiber corrosion tape maximum range of applications, fully able to meet a variety of pipeline corrosion engineering. Has a strong bond with the adhesive backing, good impact resistance and good match with cathodic protection, etc., have used in North America, South America and some domestic pipeline project. Three-tier structure of polyolefins (3PE anti-corrosion steel) is developed in Europe in the 1980s and the beginning of the successful use of, it is the high permeability FBE good corrosion resistance, adhesion, and high resistance to cathodic stripping polyolefin materials resistance, good mechanical properties and resistance to soil stress corrosion properties combine structure, once came to the project has been in many applications, especially in European countries, and its application showed a rising trend. PE is the bottom three layers of epoxy coating, a polymer adhesive intermediate layer, the surface layer of a polyolefin. Adhesives may be modified polyolefin containing a polar group grafted to a polyolefin main chain carbon bond. Thus, both the adhesive and a surface-unmodified polyolefin blending, and of using a polar group with the epoxy resin curing reaction. This combination of characteristics is to achieve the best bond strength between the three coatings, while the performance and characteristics of the layers of paint so get three complementary. It is characterized by high cost and complex process. The so-called anti-corrosion steel pipe 3PE or divided into two, one is the other is a 2PE 3PE anti-corrosion steel pipe corrosion, including corrosion anti-corrosion steel structure 2PE oil layers, the first layer is the adhesive, the second layer is a polyethylene , integration of the two materials, the thickness of each layer is the same, and there is a three-layer anti-corrosion steel 3PE the PE coating, the first layer is epoxy powder, the second layer is an adhesive, the third layer is polyethylene, three kinds of material integration, and a strong bond with the steel to form an excellent coating. 3PE anti-corrosion steel pipe which include base metal spiral, straight seam and seamless pipes, etc., in our country is widely used in petroleum, chemical, gas and heat as well as waste water treatment, water, bridges, steel, marine piling and other water pipeline engineering fields, the factors that affect the performance of PE anti-corrosion steel coating is more, where as the layout of each step, equipment selection, surface quality, heating, painting temperature, cooling, transmission accuracy, material properties, and detection, and control will result in poor coating adhesion small, too thin, cracks or bubbles and other defects, strict implementation of norms and methods of scientific work on the control deficiencies, the yield is crucial to ensure that anti-corrosion pipe. 3PE anti-corrosion pipe insulation function is good, only 25% of heat loss out of traditional pipe, long-term operation can save a lot of power, significantly reduce power costs. Highly waterproof and resistant to erosion, without attached trench can be directly buried in the ground or water, the construction is simple agility and lower total cost. At low temperatures premise also has excellent resistance to corrosion and impact resistance, can be directly buried permafrost. The service life of up to 30-50 years, the use of devices and allows accurate network maintenance costs low. You can set the alarm system, automatic detection pipeline leakage problems, accurate indication of fault status and active alarm. Chinese anti-corrosion materials industry development in the country has matured, with industry and national standards are maturing, cathodic protection expertise and actual performance are increasingly being long-distance pipelines and storage tanks investors favored large-scale projects in the past invested in testing and evaluation of the project by several years has certainly achieved good results. How do the investment and the effect of unity, we must do the actual measurement site design and choose a higher profile visits, skilled manufacturers of anti-corrosion materials.