HEATSHRINKABLE SELF-EXTINGUISHING TUBING IN POLYOLEFIN ?SERIES STP-BS? THIN WALL SHRINK RATIO 2 ÷ 1
GENERAL FEATURES
Series STP-BS polyolefin tubing is a heatshrinkable tubing with excellent physical and electrical properties. It is ideal for general protective covering, cabling and insulation and thanks to the simplicity with which it shrinks it adapts very easily to the item being covered. Furthermore, thanks to its fast shrinking it is particularly used when it is necessary to reduce time of shrinking and processing operation.
Note: knowing the diameter of the object to be covered, the width of the flattened tubing can be calculated using the formula 1.57079 x diameter. Knowing the width of the tubing, the diameter of the object to be covered can be calculated using the formula 0.6366 x width of tubing.
TECHNICAL FEATURES
| Shrink ratio | 2 ÷ 1 | |
| Operating temperature | ? 45 °C ÷ + 125°C | |
| Flammability) | | ACCORDING TO STANDARD UL 224 VW-1 |
| Standard colours | Black (others on request) | |
| Packaging | On reels | |
| Minimum shrinking temperature | > +110°C | |
| Dielectric strength | >=15 KV/mm | |
| Resistance to traction after ageing | >-10,4 MPa | ASTM D 2671 |
| Resistance to traction after ageing | >- 7,3 MPa | (168 hours at 158 °C) |
| Elongation to break | 200% | ASTM D 2671 |
| Ultimate elongation after heat aged | >-100% | ( 168 hours at 158°C) |
| Longitudinal variation | ± 0,5% | |
| BEFORE SHRINKING | AFTER FREE SHRINKING | |
| Internal diameter in mm (D) | Wall thickness in mm (e) | Internal diameter in mm (d) | Wall thickness in mm (e) | Packaging
mt. |
| 1.2 | 1.4 ± 0.2 | 0.65 | 0.20 | 200 |
| 1.6 | 1.9 ±0.2 | 0.85 | 0.20 | 200 |
| 2.0 | 2.4 ± 0.2 | 1.00 | 0.22 | 200 |
| 2.4 | 2.9 ± 0.2 | 1.30 | 0.25 | 200 |
| 3.2 | 3.4 ± 0.2 | 1.50 | 0.28 | 200 |
| 3.5 | 3.9 ± 0.2 | 1.80 | 0.28 | 200 |
| 4.0 | 4.4 ± 0.2 | 2.0 | 0.30 | 200 |
| 4.5 | 4.9 ± 0.2 | 2.30 | 0.30 | 200 |
| 4.8 | 5.5 ± 0.2 | 2.50 | 0.32 | 100 |
| 6.4 | 6.5 ± 0.2 | 3.00 | 0.32 | 100 |
| 7.0 | 7.5 ± 0.3 | 3.50 | 0.32 | 100 |
| 8.0 | 8.5 ± 0.3 | 4.00 | 0.32 | 100 |
| 9.5 | 9.5 ± 0.3 | 4.50 | 0.35 | 100 |
| 10.0 | 10.5 ± 0.3 | 5.00 | 0.35 | 100 |
| 11.0 | 11.5 ± 0.3 | 5.50 | 0.40 | 100 |
| 12.0 | 12.5 ± 0.3 | 6.00 | 0.40 | 100 |
| 13.0 | 13.5 ± 0.3 | 6.50 | 0.40 | 100 |
| 14.0 | 14.5 ± 0.3 | 7.00 | 0.40 | 100 |
| 15.0 | 15.5 ± 0.4 | 7.50 | 0.40 | 100 |
| 16.0 | 16.5 ± 0.4 | 8.00 | 0.40 | 100 |
| 17.0 | 17.5 ± 0.4 | 8.50 | 0.40 | 100 |
| 18.0 | 18.5 ± 0.4 | 9.00 | 0.42 | 100 |
| 19.1 | 20.5 ± 0.5 | 10.00 | 0.45 | 100 |
| 22.0 | 22.5 ± 0.5 | 11.00 | 0.45 | 100 |
| 25.4 | 25.5 ± 0.5 | 12.50 | 0.45 | 50 |
