Cathodic protection of pipelines dedicated pipeline cathodic protection covering film special hot melt adhesive resin 
 Grade level of cathodic protection of buried pipeline products 
 Hot Melt 




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 Hot melt adhesive is and covering film, shrinking with other materials supporting the use of, can improve the covering film and the substrate bond strength and improve Mending parts of the waterproof sealing performance. 




 Covering film 
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 Product Description: The product is mainly used for pipe bump hurt, paste in the pipe surface to play the role of seals and corrosion. It includes radiation crosslinked polyethylene substrate, the side of a hot melt adhesive compound. 

 Advantages: 
 ? ? No special tools and with 
 ? ? Excellent wear resistance 
 ? ? Acid, alkali, salt 
 ? ? blocking the invasion of moisture and corrosion 

 Uses: petroleum, chemical, water, gas and other pipes HDPE jacket Mending 

 Model specifications: FRT 

 Performance indicators: 

 No. Test Item Unit testing standards 
 1 Peel strength (on PE) N / cm GB 2792-81 
 Basement membrane thickness of 2 mm GB 6672-86 
 3 Tensile Strength MPa GB/T1040-92 
 4 Elongation at break% GB/T1040-92 
 5 Vicat softening point. C GB 1633-79 
 6 brittleness. C GB 5470-85 
 7 Electric Strength MV / m GB 1408-89 
 8 volume resistivity Ω.m GB 1410-89 
 9 resistance to environmental stress cracking h GB 1842