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Raw materials

We pay the utmost attention to choosing the raw materials used.

Politubes uses a wide range of high quality films UL approved available from the global leading manufacturers available in the market, all of which provide excellent electrical insulation, thermal, chemical and mechanical characteristics.

 

Our films offer insulation class between thermal class A - 105°C,  B -130° C, class F - 155°C,  class H -180°C till class  C  > 400°C.

 

Dielectric strenght of our tubes and endcaps  is between 3 kV/mm till 300 kV/mm  with reference to the standard:  ASTM D-149.

 

From a mechanical point of view our tubes and endcaps can use stable , low shrink AHS - 2LSO ( 10 -15 %shrinkage )  and high shrink HS (40 % shrinkage) films.

 

 

Politubes multilayer products combine all the properties in terms of dielectric strenght and mechanical shrinkage of each film in order to meet the specific needs of customers.
Our R&D office is always engaged in the research and development of new materials which can provide technical and economic benefits to our customers.


 

Insulating Materials

Thermal Class °C

Shrinkage % Inside diameters mm

Min -Max
Tube lenghts mm

Min -Max
Endcaps
Mylar A (Polyester film
Type A
)
B No 1,75 - 150 6,6 - 14.000 Ultrasonic welded
Mylar HS (Polyester film
Type HS)
B 35 1,75 - 150 6,6 - 14.000

Ultrasonic welded

Bullnose

Polyester film Type AHS - 2LSO B 8 1,75 - 150 6,6 - 14.000 Semi caps
Woven non woven polyester B-F No 1,75 - 150 6,6 - 14.000 Ultrasonic welded - Bullnose
Nomex* - Mylar A (Polyester
Type A
)
F-H No 1,75 - 150 6,6 - 14.000 Ultrasonic welded
Nomex* - Mylar HS (Polyester
Type HS)
F-H 30 1,75 - 150 6,6 -14.000

Ultrasonic welded

Bullnose

Nomex* 410 - 411 H No 1,75 - 150 6,6 - 14.000
On demand
Kapton (Polyimide Film ) C No 1,75 - 150 6,6 - 14.000 Ultrasonic welded
Dielectric Kraft Paper A No 1,75 - 150 6,6 - 14.000 On demand

 

Mylar - Kapton - Nomex© are DuPont registered trademarks.


Politubes is ISO 9001 : 2008 certified by Lloyd's Register Quality Assurance Politubes srl download PDF

Politubes products are UL certified - File nr E350605 (Repackaged Recognized and Traceable Components) download PDF