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 |