n Application
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.
n Features/Benefits
·Shrink ratio: 2:1, 3:1.
·Flexible, flame-retardant.
·Excellent physical, chemical and electrical properties and high reliability.
·Conform to RoHS and Sony-ss00259 environmental directive.
■ Operating Temperature Range
Operating temperature range: -55℃~135℃
Minimum shrink temperature: 70℃
Minimum full recovery temperature: 110℃
■ Standards/Approvals
UL224 E214175 125℃ 600V VW-1
CSA C22.2 210475 125℃ 600V VW-1
AMS-DTL-23053/5 class 1 and class 3
n Specification values
|
|
Property
|
Requirement
|
Test method
|
Typical data
|
|
Physical:
|
Concentricity
|
70% min.
|
ASTM D 2671
|
≥70%
|
|
|
Tensile strength
|
10.4MPa min.
|
ASTM D 638
|
≥14.0MPa
|
|
|
Elongation
|
200% min.
|
ASTM D 638
|
≥400%
|
|
|
Heat shock
250℃, 4hrs
|
No cracking, dripping or flowing
|
ASTM D 2671
|
Pass
|
|
|
Low temperature flexibility
-55℃, 4hrs
|
No cracking
|
ASTM D 2671
|
Pass
|
|
Aging 175℃,168hrs
|
|
|
|
|
|
Tensile strength after aging
|
70% of original min.
|
ASTM D 638
|
≥90%
|
|
|
Elongation after aging
|
100% min.
|
ASTM D 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
|
ASTM D 2671
|
Pass
|
|
|
Flammability
|
VW-1
|
UL224
|
Pass
|