Series TTP31 polyolefin tubing is a self-extinguishing heatshrinkable tubing that has a high shrinking ratio. In addition to being particularly suitable for all uses in which irregular-shaped objects and components have to be covered and protected, it has a good resistance to common fluids and solvents.


  Shrink ratio 3 ÷ 1
  Operating temperature – 55 °C ÷ + 135°C
  Flammability (except trasparent) Meets Standard UL224 VW-1
  Standard colour Black
other colours upon request
  Packaging on reels
  Tensile strength 13 N/mm2 Meets Standard ASTM D 638
  Elongation to break 300% Meets Standard ASTM D 638
  Longitudinal variation <= + 1% – 10%
Meets Standard ASTM D 2671
  Water absorption <= 0,15% Meets Standard ASTM D 570
  Specific weight 1.45 g/cm3 Meets Standard ASTM D 792
  Minimum shrinking temperature > +90 °C
  Shock termico (4ore a 250 °C) no damage Meets Standard ASTM D 2671
  Elongation after heat ageing test
(168 hours at 150 °C)
200% Meets Standard ASTM D 638
  Low flexibility temperature (-55 °C) No cracking Meets Standard ASTM D 2671 C
  Resistance to mould good Meets Standard MIL-DTL-7444
  Resistance to fluids good Meets Standard MIL-DTL-23053/5
Copper corrosion none Meets Standard ASTM D 2671B
Volume resistivity 1014 Meets Standard ASTM D 257
Dielectric strength 20 kV/mm Meets Standard ASTM D 2671
Information regarding application Vedere il capitolo
Choice of heatshrinkable tubing and information regarding its application
Internal diameter
in mm (D)
Internal diameter in mm (d) Wall thickness in mm (e) Packaging


1.5 0.5 0.45 200
3.0 1.0 0.55 200
4.8 1.6 0.60 150
6.0 2.0 0.70 100
9.0 3.0 0.70 100
12 4.0 0.70 50
18 6.0 0.80 50
24 8.0 1.00 50
39.0 13 1.15 25

La RTE si riserva il diritto di apportare eventuali modifiche al presente catalogo senza preavviso. RTE reserves the right to make any modification to this catalogue without prior notice. I dati contenuti in questo catalogo sono basati su test che riteniamo validi, ma che non costituiscono garanzia implicita od espressa. Potranno variare in qualunque momento in funzione di nuove conoscenze od esigenze, senza preavviso da parte della ns. società.
The information given in this catalogue is based on tests we believe to be valid, but it does not constitute intended or explicit guarantee. The information may vary at any time in accordance with updated knowledge and needs, without prior notification from our company.

Consigliamo ai ns. clienti di valutare l’idoneità dei ns. prodotti secondo la loro applicazione specifica.
We recommend that our customers assess the suitability of our products in regard to their specific application.

In nessun caso ci riterremo responsabili per qualsiasi eventuale danno, indiretto o conseguente alla vendita, rivendita, trasferimento, uso o uso improprio del prodotto.
In no case shall we be considered liable for any damages, whether indiirect or in consequence of the sale, resale, transfer, use or incorrect use of the product.

Revision April 2017