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  Data Sheet

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.
 
BEFORE SHRINKING AFTER FREE SHRINKING  
Internal diameter
in mm (D)		 Internal diameter in mm (d) Wall thickness in mm (e) Packaging
mt.

4.0
 1.0 1.02 200
8.0 2.0 1.02 150
12.0 3.0
 1.30 100
16.0 4.0
 1.78
 50
24.0 6.0
 2.10
 50
32.0 8.0
 2.50
 50
52.0 13.0
 2.50
 50
 
HEATSHRINKABLE
TUBING IN POLYOLEFIN


"SERIES TTPA41"
SHRINK RATIO
4 ÷ 1
WITH INTERNAL ADHESIVE
   Caratteristiche generali
 
Series TTPA41 polyolefin tubing is heatshrinkable tubing with internal adhesive. The internal surface of the tubing is coated with a heat-melt adhesive which melts around the object during shrinking, in order to protect it from any infiltration of water or humidity. The high shrink ratio makes this tubing suitable for protecting particularly irregular objects due to its high dimensional differences. It is ideal for all applications in which a high degree of protection is necessary.
  Caratteristice Tecniche
  Shrink ratio
 4 ÷ 1  
  Operating temperature (only the external wall)
 - 55 °C ÷ + 110°C  
  Flammability (only the external wall)   Meets Standard ASTM D2671 B
  Standard colour
 Black
other colours upon request		  
  Tensile strength
 11 N/mm² Meets Standard ASTM D 638
  Elongation to break
 300% Meets Standard ASTM D 638
  Longitudinal variation
 ≤+1% ≤-10% maximum Meets Standard ASTM D 2671
  Water absorption
 ≤0.5% Meets Standard ASTM D 570
  Specific weighto
 1.45 G/cm3 Meets Standard ASTM D 792
  Minimum shrinking temperature > +110 °C  
  Heat shock (4 hours at 250 °C)
 No damage Meets Standard ASTM D 2671
  Elongation after heat ageing test (168 hours at150 °C)
 250% Meets Standard ASTM D 638
  Low flexibility temperature (-55 °C)
 No crackinga 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 ohm.cm Meets Standard ASTM D 257
  Dielectric strength ≥ 15 kV/mm Meets Standard ASTM D 2671
  Information regarding application See chapter
"Choice of heatshrinkable tubing and information regarding its application"

 

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.