Description:
Flame retardant, dual wall, UL224 flexible heat shrink polyolefin tubing. The hot melt adhesive will melt and flow to seal and encapsulate the inner components, offering excellent insulation and protection againts moisture.
Features:
- Flame retardant UL224
- Adhesive lined for environmental protection
- Very high shrink ratio 4:1
- Very flexible
- Good adherence to steel, plastics & many other materials
- Excellent chemical, physical & electrical properties
- Shrink temperature > 100°C
- Operating temperature -55°C to +110°C*
* Outer wall operating temperature is -55°C to +135°C but in combination with the adhesive a safety margin has been applied
Download:
Standard packaging:
Meter lengths,
Dispenser boxes,
Reels

Size [mm] | Minimum Inside Diameter Supplied [mm] | Maximum Inside Diameter Recovered [mm] | Wall Thickness Recovered [nominal value, mm] |
---|---|---|---|
4/1 | 4,0 | 1,0 | 1,02 |
8/2 | 8,0 | 2,0 | 1,02 |
12/3 | 12,0 | 3,0 | 1,30 |
16/4 | 16,0 | 4,0 | 1,78 |
24/6 | 24,0 | 6,0 | 2,10 |
32/8 | 32,0 | 8,0 | 2,50 |
52/13 | 52,0 | 13,0 | 2,50 |
Physical properties:
Property | Test method | Typical value |
---|---|---|
Tensile strength | ASTM D638 | 11 N/mm2 |
Elongation at break | ASTM D638 | 300% |
Longitudinal change | ASTM D2671 | -15% to +1% |
Water absorption | ASTM D570 | max. 0,5% |
Specific gravity | ASTM D792 | 1,45 |
Thermal properties:
Property | Test method | Typical value |
---|---|---|
Heat shock 4 hours at 250°C | ASTM D2671 | no dripping, cracking or flowing |
Heat aging 168 hours at 175°C | ASTM D2671 | pass |
Low temp. flexibility at -55°C | ASTM D2671 C | no cracking |
Flammability | ASTM D2671 B UL224 VW1 |
pass (colours only) pass (black only) |
Electrical properties:
Property | Test method | Typical value |
---|---|---|
Dielectric strength | ASTM D2671 | 20kV/mm |
Volume resistivity | ASTM D257 | 1014 ohm/cm |
Chemical properties:
Property | Test method | Typical value |
---|---|---|
Chemical resistance | EN 60684-2-36 | very good |
Copper corrosion | ASTM D2671 B | no corrosion |
Norms:
- UL 224, 125°C Cert. UL E228117, CSA C 22.2 No. 198.1-98, OFT **
** Black color only