High Temperature Insulation

1P/13 Tufnol

1P/13 Tufnol is an electrical insulating material where electrical requirements are moderate. 1P/13 Tufnol has higher mechanical strength than other grades in this range and greater impact strength. 1P/13 Tufnol is easy to machine and can be hot punched up to 3.2mm thick. 

Applications:

A wide range of electrical insulation applications at low voltage. It can also be used for applications with less demanding mechanical duties.

Availability:

Typical Sheet Size (mm):  1200x1200 
Thickness (mm):  0.8 through to 25 

PAR can also offer Black 1P/13 Tufnol which may be subject to minimum order quantities. 

Specifications:

Sheet  BS EN 60893-3-4 Type PF CP 206 

Technical Specification:

Property  Unit  Result 
Cross Breaking Strength  MPa  175
Impact Strength - notched - charpy  kJ/m²  3.9
Shear Strength - flatwise  MPa  100
Tensile Strength MPa 164
Youngs Modulus GPa 10.4
Water Absorption - 1.6mm thick mg 65
Water Absorption - 3mm thick mg 80
Water Absorption - 6mm thick mg 100
Water Absorption - 12mm thick mg 150
Electric Strength flatwise in oil at 90ºC - 1.6mm thick MV/m 10
Electric Strength flatwise in oil at 90ºC - 3mm thick MV/m 6.2
Electric Strength flatwise in oil at 90ºC - 6mm thick MV/m 4.0
Electric Strength edgewise in oil at 90ºC kV 25
Insulation resistance after immersion in water ohms 5x108
Loss Tangent at 1 MHz   0.04
Permittivity at 1 MHz   5.4
Relative Density   1.36
Maximum Working Temperature - Continuous ºC 90
Maximum Working Temperature - Intermittent ºC 120
Thermal Classification   Class E
 

 

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