Corrosion in polyethylene plastic with double-sided 
 PE double-sided adhesive tape corrosion corrosion corrosion within the system with a new member, based on high-performance polyethylene film to the substrate, on both sides of the same time high performance thermal compound made of butyl rubber strip corrosion corrosion materials, can be cold wrapped construction, mainly used in oil and natural gas transmission; chemical industry, urban construction, water supply and drainage, and gas transportation pipelines and other buried steel outer surface corrosion. With easy construction, no pollution, is the preferred anti-corrosion pipeline corrosion in the world, the product performance standards SY / T 0414-2007. 
 Corrosion in this zone within the zone to overcome the general corrosion of external force is small, with the characteristics of the bond, the outer belt through the butyl rubber and high-performance anti-corrosion on the inside with a tight bond, even if the outer case to the dramatic tension and the belt will not be separated, thus giving the outer protection and preservation of the dual function, greatly improving the anticorrosion effect. 
 Second, the major technical indicators 
 Item Unit Parameter 
 Color Black 
 Basement membrane thickness mm 0.4 ± 0.1 
 Layer thickness mm 0.3-0.1 ± 0.1 
 Total thickness mm 0.7-1.4 
 Tensile strength Mpa ≥ 30 
 Elongation at break% ≥ 150 
 Shear Performance (External zone) N/25mm ≥ 60 or the bonding surface 
 (For aluminum) outside the fault 
 Stripping Performance N/25mm ≥ 40.5 
 The end of gentle degrees (-10 ℃, 20mm, 3s, 1800) without cracks 
 Heat resistance (120 ℃) ??without sliding 
 Dielectric strength Mv / m> 30 
 Volume resistivity Ω. m> 1x1012 
 Water Vapor Transmission Rate (24h) mg/cm2 <0.45 
 Water absorption% <0.35 
 Temperature ℃ -5-50 


 Third, use: 

 (1), surface treatment: rust, in addition to welding slag, burrs, oil, dirt and keep clean and dry. St3 level should be reached by hand rust, rust should reach Sa2 mechanical level, and meet SYJ4007-86 requirements. 
 (2), primer: primer should be dedicated support, when used away from the fire, feet well and with a clean brush, roller or other mechanical means uniform coating. Primer amount: manual coating 12 / L machine coated 20 / L. 
 (3), 5-10 minutes until primer is dry immediately after wrapping. 
 Fourth, transportation, storage: 
 (1), anti-exposure, anti-rain, frost insulation, to prevent the crush deformation near the hot edge and the fire ban. 
 (2), in the transport or storage in the cold by the storm below 5 ℃, the need to store about 20 ℃ for 48 hours before use. 
 (3), should be at a temperature <75 ℃,> -5 ℃ warehouse storage, storage of 6 months.