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Polyethylene cold wrapping tape is mainly used in oil and natural gas transmission.Anticorrosion on the surface of buried steel pipes for water supply and drainage and gas transportation in chemical industry and urban construction.It is one of the most important anticorrosion systems for pipeline external anticorrosion.Our company has successfully trial-produced high-performance PE anticorrosive adhesive tape and its supporting technology by using the newly introduced solvent-free co-extrusion heat composite production technology in China.The rubber layer is butyl rubber with excellent aging resistance, sealing and insulation effect.The performance indexes of the products accord with the standards of SY/ t0414-98 and ANSI/ awwac209-00 and nacemr0274-95.Has reached the domestic and foreign similar product the high level.Compared with the products produced by solvent coating method which has been used at home and abroad, the products have the following characteristics:1. Uniform thickness of rubber layer, good adhesion and sealing performance.2. The adhesive force between the substrate and the adhesive layer is large, and there is no degumming phenomenon during storage or construction.3, good heat aging, anti - ultraviolet ability.4. High tensile strength, appropriate elongation at break, convenient for mechanization and manual winding.5. Complete varieties, specifications and colors, including anticorrosive belt (inner belt), protective belt (outer belt), patching belt, anticorrosive primer and construction tools.