Radiation cross-linked polyethylene waterproof cap / end cap shrinking water / thermal cap / pipe anti-corrosion material / Waterproof end caps 
 Heat shrinkable waterproof cap, also known as caps, is in the irradiated cross-linked polyethylene substrate made of composite melt. 
 First, use: mainly used in a foam jacket tube ends, connecting steel outer jacket and inner jacket, play sealed, waterproof, from mechanical damage, corrosion and so on. 
 Second, characteristics: 1, easy operation and high efficiency. 
 2, the hot melt adhesive coating with a variety of strong, good seal, waterproof and air, with self-healing ability. 
 3, has high mechanical strength and heat resistance, good heat aging, corrosion resistance and resistance to environmental stress cracking resistance, long service life. 
 4, long-distance insulation materials to prevent damage and decay, reducing heat loss, reduce repair and maintenance costs. 
 Third, the technical performance standards: (Executive SY/T0415-96) 
 1, specifications 38--800 various diameters (based on user needs) to obtain the latest information on specific landing http://www.sdxundakj.cn 

 Performance 
 No. Item Unit Index Detection 
 1 Tensile strength Mpa> 17 GB1040 
 2 Elongation at break%> 400 GB1040 
 3 paper cards softening point ℃> 90 GB/T1633 
 4 brittle temperature ℃ <-65 GB/T5470 
 5 resistance to environmental stress cracking time (F50) (h)> 1000 GB/T1842 
 Resistance to breakdown voltage strength 6 MV / m> 25 GB/T1408 
 7 volume resistivity. M> 1 × 10 GB/T1410 
 8 corrosion-resistant chemical media (dip 7d) (%) 
 10% HCL%> 85 SY/T0413 
 10% NaOH%> 85 SY/T0413 
 3% Nacl%> 85 SY/T0413 
 9 heat aging (150 ℃) (%) 
 Tensile strength Mpa> 14 GB/T1040 
 Elongation at break%> 30 GB/T1040 
 Peel strength of 10 N / cm 
 A primer on steel N / cm> 35 GB/T2792 
 Polyethylene layer N / cm> 35 GB/T2792 
 Fourth, transport, storage 
 Waterproof hat with cardboard boxes or woven bag, non-stress and the sun, rain, is strictly prohibited and grease, solvents and other hazardous substances exposure, the products stored in a cool, dry out, away from heat, storage temperature of -1 - 35 ℃ storage period of 18 months.