series thermal contraction cap

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Telegraphic Transfer (T/T)

HXSM series thermal contraction cap, also known as tarpaulin, is made of radiation crosslinking polyvinyl backing material compounded with hot-melt adhesive. Its exterior is like a cap. It is one of our thermal contraction products, and can restore to original state naturally when heated.

¢ñ. Usage: used on the two ends of foam jacket pipe. It can connect the outer jacket and inner jacket. It is used for airtightness, water resistance, mechanical damage prevention, anticorrosion, etc.
¢ò. Characteristics:
1. Easy to use and high performance.
2. Hot-melt adhesive has a strong bonding ability with various anticorrosion layers. It has good airtightness, imperviousness to water and air and restoration ability.
3. It is characterized by good mechanical strength, temperature resistance, thermal antioxidation, corrosion prevention, environment stress cracking resistance and long service life.
4. Avoid damage and disintegration of long distance thermal insulating materials, reduce thermal loss, and lower the repair and maintenance costs.

¢ó. Technical index: (conforming to SY/T0415-96)
1. Various pipe diameters with specifications of 38-800 (or customized).
2. Performance index
Serial number Item Unit Index Testing method
1 Tensile strength Mpa £¾17 GB1040
2 Breaking elongation % £¾400 GB1040
3 Vicat softening point ¡æ £¾90 GB/T1633
4 Brittleness temperature ¡æ £¼-65 GB/T5470
5 Environment stress cracking resistance time £¨F50£©(h) £¾1000 GB/T1842
6 Breakdown strength resistance MV/m £¾25 GB/T1408
7 Volume resistivity .m £¾1¡�10 GB/T1410
8 Chemical mediator corrosion prevention £¨Immersed 7d£©£¨%£©
10% HCL % £¾85 SY/T0413
10%NaOH % £¾85 SY/T0413
3%Nacl % £¾85 SY/T0413
9 Thermal antioxidation £¨150¡æ£©(%)
Tensile strength Mpa £¾14 GB/T1040
Breaking elongation % £¾30 GB/T1040
10 Peeling strength N/cm
For undercoated steel pipes N/cm £¾35 GB/T2792
For polyvinyl layer N/cm £¾35 GB/T2792
¢ô. Transportation and Storage
The tarpaulin is packaged in paper carton or woven bag. Prohibit high pressure, insolation, rain, and contacting harmful substances such as grease, solvent, etc. The product shall be stored in cool and dry place and avoid heat sources. The storage temperature is -1--35¡æ. The storage period is 18 months.

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