SM splice melt thin wall adhesive lined shrinkable tubing with increased thickness
High quality thin wall heat shrinkable tube is manufactured by extrusion method from flame retardant radiation-crosslinked polyolefin. Hot-melt adhesive based on ethylene-vinyl acetate copolymer is applied to the inner side. Produced in black and transparent colors.
Application: Thin wall adhesive tube SM is used for electrical insulation, sealing and mechanical protection of wires, wires’ splices, cable fittings, metal products subject to corrosion, for hardening and fixation of different objects with big range of diameters. During thermal shrinkage of the tube adhesive is melting and distributed over the surface of the product, filling the voids, after hardening it provides sealing and additional mechanical strength. Tube SM can be used in the production of low voltage termination and joint heat-shrinkable kits, protection of joints of submersible pumps, electrical contacts and joints operating in wet environment and require high reliability and firm sealing. This is achieved by increased amount of adhesive inside the tube which distinguish it from the other products. Transparent SM tubes allow to control object state or electrical connections with shrink tube on, can be protective cover through which marking of wire or cable, including paper marking can be read.
Package: Tube is supplied in spools 25-100mm (depending on diameter). 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.
The shelf life is at least 2 years from the date of shipment subject to storage conditions.
Certification: Not subject to mandatory certification.
Basic technical specifications:
Operating temperature |
from -45°С to +125°С (without adhesive layer) * |
Shrink temperature |
+125°С |
Shrink Ratio |
≥ 4 : 1 |
Flammability |
Flame retardant (ASTM D2671 B), without adhesive layer consideration |
Base color |
Black, transparent (transparent tube non-flame retardant) |
Size range: |
Inner diameter from 5.7 to 18mm |
Longitudinal shrinkage: |
≤ 7% |
*- recommended to limit the maximum operating temperature to +90 ° C, in order to avoid melting and leakage of adhesive.
Additional Technical details
Parameter |
Test Method |
Result |
Breakdown elongation |
ASTM D2671 |
≥ 200% |
Tensile strength after heat aged, МPа |
UL224 (+158°C х 168h) |
Not less than 7.3 |
Relative elongation after heat aged, % |
UL224 (+158°C х 168h) |
≥ 100% |
Dielectric strenth, kV/mm |
IEC 60243 |
≥ 15 |
Volume resistivity, Ω·cm |
IEC 60093 |
≥ 1 х 1014 |
Water absorption, % |
ASTM D570 |
Less than 0.2 |
Adhesive: melt point, °C |
ASTM E28 |
100 ± 5 |
Adhesive: power of peeling of polyethylene |
ASTM D1000 |
120Н / 25mm |
Adhesive: power of peeling of aluminum |
ASTM D1000 |
80Н / 25mm |
Size range
Size, mm |
ID before shrink, mm |
After shrink |
Put up spools, m |
||
Max ID, mm |
Total WT, mm |
Adhesive layer thickness, mm |
|||
5,7 |
>5,7 |
1,30 |
1,70 +/- 0,30 |
0,80 +/- 0,20 |
100m/spool |
7,5 |
>7,5 |
1,65 |
2,00 +/- 0,30 |
0,95 +/- 0,20 |
100m/spool |
11,0 |
>11,0 |
2,40 |
2,45 +/- 0,40 |
1,20 +/- 0,20 |
50m/spool |
18,0 |
>18,0 |
4,50 |
2,70 +/- 0,40 |
1,35 +/- 0,30 |
25m/spool |