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Add: Zhongshan Road, Huangjinshan Economic Development Zone, Huangshi, Hubei, China

Service hotline: +86-714-6367867

E-mail: hszzjohnlee@aliyun.com?

Website: http://www.shang-ren.cn

Detail

SRS-3X/SRS-4X environmental friendly flame retardant type heat shrinkable double-wall casing

 

 

Detail

 

Scope of application
SRS series product is processed by taking polyolefin and hot melt adhesive as raw material. It meets RoHS environmental standards. Outer layer has fine insulation and anticorrosion property. Inner layer has fine waterproof sealing and mechanical strain property. It is widely used for water proofing of electronic equipment, sealing of wire parting, protection of wiring harness, corrosion protection of metal pipeline.

Product features
shrinking Ratio: 3:1, 4:1
minimum complete shrinkage temperature: 110ºC。
Outer layer adopts environmental friendly polyolefin;
Meeting RoHS environmental standards;
Inter layer adopts special processing hot melt adhesive;
Excellent adhesive and sealing effect;
Temperature range: -55℃~105℃;
Outer layer flame retardant property: VW-1;

 

 

 

 

 

Product performance

Item

Test condition

Required index

Typical test data

tensile strength

ASTM D 638

≥12 Mpa

14 Mpa

elongation at break

ASTM D 638

≥350%

400%

volume resistivity

IEC 93

 ≥1014 Ω.cm

2 ×1014 Ω.cm

water absorption

ISO 62

< 0.5%

0.15%

after aging tensile strength

158ºC after 7 days of aging

≥10 Mpa

14 Mpa

after aging elongation at break

 ≥300%

410%

disruptive strength

IEC 243

>20kV/mm

23 kV/mm

power-frequency withstand strength

 

2.5 kV 60s no breakdown

up to standard

copper stability

158ºC after 7 days of aging

no crrosion

up to standard

eccentricity

UL224

≤30%

13%

longitudinal shrinkage ratio

UL224

-3 – 3 %

-0.5%

flame retardant

 

VW-1

up to standard

 

SRS-3X series specification     

Specification

Before shrinkageinner diameter(mm)

After shrinkageinner diameter(mm)

Length of the packing(m/set)

F3.2

3.5±0.3

1.00

200

F4.8

5.2±0.3

1.60

100

F6.4

6.8±0.4

2.20

100

F7.9

8.4±0.4

2.70

100

F9.5

9.9±0.4

3.20

1.22

F12.7

13.2±0.5

4.20

1.22

F15.0

15.6±0.5

5.20

1.22

F19.1

19.6±0.5

6.30

1.22

F25.4

25.4±0.8

8.50

1.22

F30.0

≥30

10.20

1.22

F39.0

≥40

13.50

1.22

F50.0

≥50

17.00

1.22

F64.0

≥64

21.00

1.22

 

SRS-4X series specification     

Specification

Before shrinkage(mm)minimum inner diameter

After shrinkage size(mm)

Length of the packing
(m/set)

maximum inner diameter

total wall thickness t+t1

thickness of the rubber t1

F4.0

F4.0

F1.0

1.0±0.15

0.4±0.15

200

F6.0

F6.0

F1.5

1.1±0.15

0.4±0.15

100

F8.0

F8.0

F2.0

1.2±0.15

0.5±0.15

1.22

F12.0

F12.0

F3.0

1.4±0.15

0.5±0.15

1.22

F16.0

F16.0

F4.0

1.7±0.15

0.6±0.15

1.22

F20.0

F20.0

F5.0

2.0±0.15

0.6±0.15

1.22

F24.0

F24.0

F6.0

2.1±0.15

0.6±0.15

1.22

F32.0

F32.0

F8.0

2.4±0.15

0.7±0.15

1.22

F52.0

F52.0

F13.0

2.4±0.15

0.7±0.15

1.22

Standard color: black

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