Model K-2 GYS

Yellow & green striped, flexible, flame-retardant polyolefin tubing
KOSOO K-2 (GYS) is yellow & green striped, flexible, flame-retardant, irradiated crosslinking heat-shrinkable modified polyolefin tubing. It is designed for use in earth sleeving. 3:1 shrink ratio is for more suitable for application to irregular, awkward shapes.
·Shrink ratio: 2:1, 3:1.
·Flexible, flame-retardant.
·Excellent physical, chemical and electrical properties and high reliability.
·Free of PCBs, PCPs, polybrominated biphenyls (PBBs), polybrominated biphenyl oxides and ethers (PBBOs, PBBEs and PBDEs) and toxic heavy metal compounds, which are classified as environmentally hazardous substances. Conform to European RoHS environmental directive.
Operating Temperature Range
Operating temperature range: -55℃~135℃
Minimum shrink temperature: 70℃
Minimum full recovery temperature: 110℃
UL224 E214175 125℃ 600V VW-1
CSA C22.2 210475 125℃ 600V VW-1
AMS-DTL-23053/5 class 2 and class 3

Specification values

  Property Requirement Test method Typical data
Physical: Concentricity 70% min. ASTM D 2671 >70%
  Tensile strength 10.4MPa min. ASTMD 638 >14.MPa
  Elongation 200% min.   ?400%
  Heat shock 250 C, 4hrs No cracking, dripping or flowing   Pass
  Low temperature flexibility
-55C, 4hrs
No cracking   Pass
Aging 175C, 168 hrs        
Testing strength after aging 70% of original min ASTMD 638 >90%  
Elongation after aging 100% min ASTMD 638 >300%  
Electrical Dielectric voltage withstand 2500V, 60sec no breakdown UL224 Pass
Dielectric strength 19.7KV/mm min. ASTM D 2671 25KV/mm  
Volume resistivity 1014Ω·cm min. ASTM D 876 1014Ω·cm  
Chemical: Corrosion No corrosion ASTMD 2617 Pass
  Flammability VW-1 UL224 Pass

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