Shrinking band

Heat shrinkable tape WSS heat shrinkable tape is heat shrinkable material specifically for corrosion mending buried or overhead weld steel pipe anti-corrosion materials and design. It consists of radiation cross-linked high density polyethylene substrate and special seals hot melt adhesive coating composite. Suitable for 3PE, FBE, PP as the main pipeline weld corrosion mending corrosion and corrosion elbow region, can also be used for yellow jacket pipe insulation weld mending. Special sealing hot melt adhesive and polyethylene substrate, and the surface and the liquid epoxy coating can form a good bond. When WSS shrinking band installation and construction, the application of heat shrinkable band radially uniform shrinkage, and hot melt adhesive layer melts evenly coated surface of the pipe is filled with the original pipeline coatings form a continuous close preservative system can soil stress resistance, anti-hydrostatic pressure, resistance to cathodic stripping, anti-corrosion behavior of a variety of chemical corrosion and mold erosion. Application Guide (Executive Standard: SY / T0413-2002 and EN12008) WSS50 (mastic) WSS60 WSS80 maximum operating temperature of 60 ℃ 70 ℃ 85 ℃ suitable external anticorrosion coating PE, FBE, PP or steel PE, FBE, PP PE, FBE, PP pipe preheating temperature 60 ℃ 75 ℃ 85 ℃ recommend rusting grade Sa2.5, St3.0 Sa2.5, St3.0 Sa2.5, St3.0 specifications WSS60 / 80 can be applied to the diameter between DN100-DN2000 All steel between. Substrate thickness from 1.0 to 1.5mm, layer thickness from 0.8-2.0mm. Specifications Performance Test Method Typical value WSS50 (mastic) typ WSS60 typical WSS80 primer solids content (%) GB / T1728 99.5 99.5 99.5 cathode stripping (65 ℃, 48h) mm Q / SY GJX0113-2007 (Appendix D) 8 88 base tensile strength Mpa GB / T1040-92 21 24 24 Elongation at break% GB / T1040-92 550 550 550 Density ASTM D792 0.93 0.94 0.94 Dielectric strength MV / m GB / 1408.1-99 35 35 35 Volume Resistivity Ω? m GB / T1410-89 4.0 × 1015 4.0 × 1015 4.0 × 1015 heat aging (150 ℃, 21 天) GB / T1040-92 Tensile strength Mpa 17 18 18 Elongation at break% 480 480 480 UV-resistant aging EN12068 EN12068 Elongation at break% 450 480 480 hot melt adhesive softening point ℃ GB / T4507-85 78 113 120 lap shear strength Mpa ASTM D1002-05 0.8 0.8 1 low temperature toughness -30 ℃ -30 ℃ -30 ℃ hot shrink tape peeling strength GB / T2792-98 primed steel N / cm 90 160 140 对 PE N / cm 85 110 95 cathodic stripping (70 ℃, 30d) mm SY / T 0413-2002 / 18 18 hot soak ASTMD870- 2002 no delamination under test conditions, no traces of water erosion no delamination under test conditions, no traces of water erosion no delamination under test conditions, no traces of erosion by water absorption ASTM D570 0.001% 0.001% 0.001%