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Specifications

OSOO K-2
Environment friendly, flexible, flame-retardant polyolefin Heat Shrink Tube
 
n Application
KOSOO K-2 is environment friendly, flexible, flame-retardant, irradiated crosslinking heat-shrinkable modified polyolefin tubing. Unlike other typical flame-retarant tubings, K-2 is 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. This high-reliability product is widely used for insulation or jacketing of wire harness, strain relief of wire terminations and connections, bundling of wire harness, protection of soldered points, insulation and capsule of electronic components, anti-corrosive protection, identification and color coding, etc.
 
n Features/Benefits 
·Shrink ratio: 2:1.
·Very flexible, highly flame-retardant.
·Low shrink temperature.
·Good thermal stability.
·Excellent physical, chemical and electrical properties.
·Conform to RoHS and Sony-ss00259 environmental directive.
·Wide range of sizes and colors.
 
■ 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

OSOO K-2
Environment friendly, flexible, flame-retardant polyolefin tubing
 
n Application
KOSOO K-2 is environment friendly, flexible, flame-retardant, irradiated crosslinking heat-shrinkable modified polyolefin tubing. Unlike other typical flame-retarant tubings, K-2 is 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. This high-reliability product is widely used for insulation or jacketing of wire harness, strain relief of wire terminations and connections, bundling of wire harness, protection of soldered points, insulation and capsule of electronic components, anti-corrosive protection, identification and color coding, etc.
 
n Features/Benefits 
·Shrink ratio: 2:1.
·Very flexible, highly flame-retardant.
·Low shrink temperature.
·Good thermal stability.
·Excellent physical, chemical and electrical properties.
·Conform to RoHS and Sony-ss00259 environmental directive.
·Wide range of sizes and colors.
 
■ 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
■ Product sizes 
  ·Inch size                                                               mm/inch
Size
Inside diameter
Wall thickness
Standard length
(m/spool)
As supplied(min.)
After recovery(max.)
After recovery
3/64
1.2(0.046)
0.6(0.023)
0.40±0.08(0.016±0.003)
200
1/16
1.6(0.063)
0.8(0.031)
0.43±0.08(0.017±0.003)
200
3/32
2.4(0.093)
1.2(0.046)
0.51±0.08(0.020±0.003)
200
1/8
3.2(0.125)
1.6(0.062)
0.51±0.08(0.020±0.003)
200
3/16
4.8(0.187)
2.4(0.093)
0.51±0.08(0.020±0.003)
100
1/4
6.4(0.250)
3.2(0.125)
0.64±0.08(0.025±0.003)
100
3/8
9.5(0.375)
4.8(0.187)
0.64±0.08(0.025±0.003)
100
1/2
12.7(0.500)
6.4(0.250)
0.64±0.08(0.025±0.003)
100
3/4
19.1(0.750)
9.5(0.375)
0.76±0.08(0.030±0.003)
50
1
25.4(1.000)
12.7(0.500)
0.89±0.12(0.035±0.005)
50
1 1/4
31.8(1.250)
15.9(0.625)
1.02±0.15(0.040±0.006)
50
1 1/2
38.1(1.500)
19.1(0.750)
1.02±0.15(0.040±0.006)
50
50.8(2.000)
25.4(1.000)
1.14±0.16(0.045±0.007)
50