NEMA G7 can be used in high temperature applications under humid conditions. It has excellent heat resistance and arc resistance, it is self extinguishing and is rated as class H insulation. It is used in heating, appliance and electrical industries, and anywhere a high strength electrical insulator is needed in high temperature applications.
Sheet Sizes: 36"x48"; 36"x72"; 48"x48"; 48"x96"; 48"x108"
Thickness: 0.031" to 2"
Color: White
Specifications
| Density | 118 pcf / 0.68 pci |
| Maximum operating temperature | |
| - electrical | 338ºF (170ºC) |
| - mechanical | 428ºF (220ºC) |
| Water absorption | 0.03% |
| Hardness (Rockwell M) | 105 |
| Compression strength | 41,000 psi |
| Tensile strength | 20,500 psi |
| Flexural strength | 25,000 psi |
| Impact strength – Izod edgewise with grain | 11 ft-lb/in |
| Dielectric strength | 350 volts/mil |
| Dielectric constant (1,000,000 cycles/second) | 4.2 |
| Volume resistivity | n/a |
| Arc resistance | 240 sec |
| Parallel dielectric | 60kv |
| Surface resistivity | n/a |
