HWG heavy wall adhesive lined heat-shrinkable tube

HWG is heavy wall non-flame-retardant heat-shrinkable tube with adhesive layer. Composition and properties are identical to middle wall adhesive tube MWG. Main difference is increased wall thickness before and after shrink. Due to this, HWG tube has improved mechanical strength and increased breakdown resistance.

 

Application: Having increased resistance to abrasive and other mechanical influences, HWG tube can be used as outer protective cover for repair of high-voltage cables, mounting of termination and joined accessories, etc. The tube has proven itself as one of the options for anti-corrosion protection of metal parts, fittings, pipes, etc.

Cut into pieces of certain length the tube is suitable for using as heat shrinkable cable sealant providing complete sealing in places of connection of heat shrinkable tube with cable and heat shrinkable tube with cable channel. Halogen-free, safe for environment and human health. 

Package: Tube is supplied in pieces of 0.8m, 1.0m and 1.22m with two variants of glue: glue on ends and all glue. Can be packed in carton boxes and packaging film / bags.

Storage: in clean, dry rooms in the supplier's packaging or in cardboard boxes, at a relative humidity of up to 70%, at temperatures from -10°C to +50°C, avoiding sudden temperature changes and exposure to direct sunlight. The distance to any heating sources should be at least 1 meter (without exceeding the maximum storage temperature). Storage conditions should exclude the influence of aggressive medium: acids, alkalis, fuels and lubricants, solvents, etc. Tubes with adhesive layer require storage in tight bags/boxes to avoid contamination of the adhesive layer of the tubes with dust and dirt inclusions of various origins, which can negatively affect the adhesion.

Certification: Not subject to mandatory certification.

Basic technical specifications:

Operating temperature

from -55С to +105°С

Shrink temperature

from +105°С to + 135°С

Shrink Ratio

from 3 : 1 to 4 : 1

Flammability

non-flame-retardant

Base color

black

Size range:

inner diameter from 9mm to 160mm

Longitudinal shrinkage

≤ 15%

 

Additional Technical details:

Parameter

Test Method

Result

Tensile strength, МPа

ASTM D2671

12

Breakdown elongation

ASTM D2671

400%

Material density, g/cm3

ASTM D792

1.10

Elongation after heat aged (+158°C х 168h) %

ASTM D2671

350

Tensile strength after heat aged, МPа

ASTM D2671

12

Flexibility under low temperatures (-55°C х 4h)

ASTM D2671

no crack

Shore hardness, method D

ASTM D2240

60

Heat shock (+200°C х 4h)

ASTM D2671

no damage (without glue consideration)

Adhesive: melt point, °C

ASTM E28

+ 90°C (+/- 5°C)

PE adhesion strength, Н / 25 mm

ASTM D1000

110

Al adhesion strength, Н / 25 мм

ASTM D1000

80

Dielectric strength, kV/mm

ASTM D2671

20

Volume resistivity, Ω·cm

ASTM D257

1014

Copper corrosion

ASTM D2671

No corrosion

Water absorption, %

ASTM D570

0.5

Resistance to fungus and mold

ASTM G21

fungus and mold don’t grow

Table 1.Size range

Size, mm

ID, mm

Min WT after shrink, mm

before shrink, mm

after shrink, mm

Ø 9 / 3

9

3

2.6

Ø 12 / 4

12

4

2.8

Ø 16 / 5

16

5

3.0

Ø 19 / 6

19

6

3.0

Ø 22 / 6

22

6

3.25

Ø 25 / 8

25

8

3.25

Ø 33 / 8

33

8

3.25

Ø 40 / 12

40

12

3.95

Ø 45 / 13

45

13

3.95

Ø 55 / 16

55

16

4.05

Ø 69 / 19

65

19

4.05

Ø 75 / 22

75

22

4.05

Ø 85 / 25

85

25

4.05

Ø 95 / 25

95

25

4.05

Ø 105 / 30

105

30

4.05

Ø 115 / 34

115

34

4.05

Ø 130 / 36

130

36

4.05

Ø 140 / 42

140

42

4.05

Ø 160 / 50

160

50

4.05