Heat Shrink Tubing for Fiber Optic Closures

Insutek KFSC series of Fiber Optic splice closure heat shrinkable tube, is kind of specially designed product which suitable for sealing communication optical cable splice box, enclosures, overhead, directly buried communication cable.

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Insutek KFSC series of Fiber Optic splice closure heat shrinkable tube, is kind of specially designed product which suitable for sealing communication optical cable splice box, enclosures, overhead, directly buried communication cable.

It consists of: Outer layer medium wall heat shrink tube and inner layer of adhesive. The outer layer of tubing can provide reliable external protection, and the high performance inner hot melt adhesive can provide reliable waterproof performance , and prevent gas leakage in the splice box.

Features:

  1. Anti-UV, waterproof, Corrosion resistance, Resistance to mechanical damage
  2. Hot melt adhesive prevents the leakage of the filling gas of the optical fiber connection box, which can pass 10 times of High-Low Temperature cycling test.
  3. The surface of the product can be sprayed with color-changing paint, which is convenient for heat shrink operation instructions
  4. Operating Temperature: -55 to +110℃, Minimum Shrink Temperature: 125℃
  5. Shrink Ratio: 4:1

 

  1. Color-changing paint: Begin to turn color at 220℃

Property

Test method

Typical figures

Density

ASTM D2671

0.95~1.00

Hardness (shore D)

ASTM D2671

≥ 45 HD

Tensile strength

ASTM D2671

≥19 MPa

Elongation

ASTM D2671

≥450%

Tensile strength after aging

ASTM D2671

≥18 MPa

158 ℃/168 hours  Elongation

ASTM D2671

≥400%

Dielectric strength

ASTM D2671

 ≥15 kV/mm

Fungus resistance

ASTM G21

None growth

UV resistance

ASTM G53

2000hours,Elongation≥360%

Water absorption

ASTM D570

23℃/24 hours   0.2% max

Low temperature flexiblity(outer)

ASTM D2671

-40℃/4hours, no cracking

Low temperature flexiblity(inner)

ASTM D2671

-20℃/4hours,no cracking

sealing

23℃/100kPa for 24h, immersed in water for 15min

Pass

Thermal aging

60℃/168hour, air pressure 70kPa

Pass

Elongation

D/45*1500N, air pressure 60kPa,24 hours

No leaking

special fluid

70% gasoline and 30% toluene

No leaking

Model

As supplied(mm)

After recovery(mm)

length

KFSC

IDmin

IDmax

wall thickness (mm)

mm

28/6

28

6

2.9

150 or 180 or 200

30/6

30

6

3.0

150 or 180 or 200

33/8

33

8

3.0

150 or 180 or 200

35/10

35

10

3.1

150 or 180 or 200

38/9

38

9

3.5

150 or 180 or 200

43/9

43

9

3.8

150 or 180 or 200

45/10

45

10

3.8

150 or 180 or 200

50/12

50

12

3.7

150 or 180 or 200

55/16

55

16

3.7

150 or 180 or 200

65/20

65

20

3.6

150 or 180 or 200

75/20

75

20

3.7

150 or 180 or 200

75/22

75

22

3.7

150 or 180 or 200

85/25

85

25

3.8

150 or 180 or 200

95/25

95

25

4.2

150 or 180 or 200

105/30

105

30

4.2

150 or 180 or 200