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Material Choices

Nomex ®

 General Description

Nomex ® is a polyamide paper made by DuPont that has superior high temperature, high dielectric and good mechanical qualities. Precision Paper Tube Company has developed a method of fabricating square, round, or rectangular tubing of this material using a special, compatible binder that provides a laminated, thermally stable, Class "H" insulating tubing.

 

Material Properties* :
Dielectric strength- VPM min:  720
High Temperature Range - °C:  220
Volume Resistively - Ohm/Cm. (@ 25 °C):  10^16
Dielectric Constant ( @ 10^3 Hz ):  2.9
Specific Gravity: .91
U/L Yellow Card No. E50630 (Lists Thermoform - 700, which is Precision's material designation for tubing made of Nomex.)

Nomex ® is a DuPont reg. trademark

 

 

Additional Information

Advantages: Nomex ® is recognized for its excellent electrical, thermal and mechanical properties. Precision has developed a method of fabricating this tubing using a compatible binder that provides a laminated, thermally stable, Class "H" insulating tubing that can be used in flame retardant applications.

Minimum Wall Thickness: .005" (round), .010" (rect.)

Suggested Uses: Transformer forms and collar supports; voltage regulator transformers; primary coil forms; as bobbins in high temperature, continuous run motors; motor shaft insulators and spacers for industrial type, heavy duty tools; high temperature potting cases; heat insulators and shields; flame proofing applications.

 

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