Item

Test Method

Specifications

Min. shrink temperature (°C)

175

Operating Temperature (°C)

IEC216

-55 °C to +200

Tensile Strength (M Pa)

ASTM D638

≥8

Elongation change (%)

ASTM D638

≥250

Longitudinal change (%)

≤10

Elongation change after aging at 168hrs,250°C

≥200 MPa

Heat Shock at 4hrs,300°C

No cracking or dripping

Dielectric Strength (KV/mm)

ASTM D2671

≥9

Volume Resistivity (?.cm)

ASTM D876

≥10¹¹

Item

KFM Fluoroelastomer 
Shrinkable tubing

Silicone rubber Shrinkable tubing

Operating Temperature (°C)

-55°C~+200°C

-60°C~+200°C

Mechanics

Good

poor

Acid and alkali resistance

Good

poor

Oil resistance

excellent

Normal

Flammability

good self-flammability

Flammable, and bad self-flammability

Abrasion resistance

Normal

poor

Sealing

Good

poor

Insulation

Normal

Good

Water proof

Good

Normal

Size
(inch)

Inside Diameter

Recovered Wall
(mm)

Standard Length
(m/spool)

Minimum Expanded as Supplied (mm)

Maximum Recovered
after Heating (mm)

1/8

3.2

1.6

0.76

50

3/16

4.8

2.4

0.89

50

1/4

6.4

3.2

0.89

50

3/8

9.5

4.7

1.02

50

1/2

12.7

6.4

1.22

30

5/8

15.9

7.9

1.40

30

3/4

19.0

9.5

1.45

30

7/8

22.2

11.1

1.53

30

1

25.4

12.7

1.78

30

1-1/4

31.8

15.9

1.91

30

1-1/2

38.1

19.1

2.41

15

2

51.8

25.4

2.79

1

Inside Diameter

Recovered Wall
(mm)

Standard Length
(m/spool)

Minimum Expanded as Supplied (mm)

Maximum Recovered
after Heating (mm)

1/8

3.2

1.6

0.76

50

3/16

4.8

2.4

0.89

50

1/4

6.4

3.2

0.89

50

3/8

9.5

4.7

0.89

50

1/2

12.7

6.4

0.89

30

3/4

19.1

9.5

1.07

30

1

25.4

12.7

1.25

30

1-1/2

38.1

19.1

1.40

15

2

50.8

25.4

1.65

15