High Temperature Insulation

10G50 Grades Tufnol 

TUFNOL Grade 10G/50 is a laminated plastics material made from woven glass fabric, bonded with silicone resin.

It is a rigid sheet material with good resistance to high temperatures and very good electrical insulation properties, especially in applications involving very high frequencies.  Note, however, that silicone bonded laminates have mechanical strength properties somewhat lower than some other glass fabric laminates.

Type  Sheets  Rods  Tubes  Other sections 
Grade 10G/50-Natural colour Yes  No  No  No

 Specifications:

Sheet  BS EN 60893-3-6 Type SI GC 202 

Technical Specification:

Property  Unit  Result 
Cross Breaking Strength  MPa  140
Impact Strength - notched - charpy  kJ/m²  70 
Cross breaking strength 150ºC MPa  80
Water Absorption - 1.6mm thick mg 4
Water Absorption - 3mm thick mg 6
Water Absorption - 6mm thick mg 9
Electric Strength flatwise in oil at 90ºC - 1.6mm thick MV/m 14
Electric Strength flatwise in oil at 90ºC - 3mm thick MV/m 11
Electric Strength edgewise in oil at 90ºC KV 65
Insulation resistance after immersion in water ohms 1x1010
Loss tangent at 1 MHz   0.002
Permittivity at 1 MHz   4.2
Comparitive Tracking Index   800
Relative Density   1.90
Maximum Working Temperature - Continuous ºC 200
Maximum Working Temperature - Intermittent ºC 250
Thermal Classification   Class 200
 

 

 

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