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DuPont™ NOMEX 818 – 0.2mm
Electrical Insulation Paper
£0.00
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- Exceptional thermal stability
- Outstanding mechanical toughness
- Inherent dielectric strength
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Description
DuPont Nomex 818 delivers reliable performance for increased confidence in the face of many dangerous conditions. Built on a 50-year track record, Nomex® provides proven, lightweight and durable solutions for a range of applications and industries. From keeping people safe while drilling beneath the earth’s core to rocketing into space. Nomex®. NEVER QUIT™.
Benefits
- High inherent dielectric strength
- Available in five thicknesses, ranging from 0.08 mm to 0.25 mm (3 mil to 10 mil).
- Exceptional thermal stability
- Outstanding mechanical toughness
Features
- Electrical Properties
- Mechanical Properties
- Thermal Properties
- Chemical Stability
- Radiation Resistance
Recommended Uses
- Nomex® 818 is designed for high-voltage applications, including motor conductor and coil wrap, transformer ground and layer insulation.
Electrical Properties
| Property | Thickness 0.08mm | Thickness 0.13mm | Thickness 0.015mm | Thickness 0.20mm | Thickness 0.25mm | Test Method |
|---|---|---|---|---|---|---|
| Dielectric Strength AC Rapid Rise, V/mil | 710 | 890 | 990 | 1000 | 990 | ASTM D149¹ |
| Dielectric Strength AC Rapid Rise, kV/mm | 28.1 | 35.0 | 39.0 | 39.3 | 39.0 | ASTM D149¹ |
| Full Wave Impulse, V/mil | 1600 | 1600 | 1600 | 1600 | 1700 | ASTM D3426 |
| Full Wave Impulse, kV/mm | 63 | 63 | 63 | 63 | 67 | ASTM D3426 |
| Dielectric Constant at 60 Hz 50% RH | 2.9 | 3.6 | 5.0 | 4.0 | 4.1 | ASTM D150 |
| Dielectric Constant at 60 Hz Dry² | 2.3 | 2.5 | 3.0 | 2.5 | 2.5 | ASTM D150 |
| Dissipation Factor at 60 Hz (x10-³) 50% RH | 130 | 120 | 180 | 140 | 140 | ASTM D150 |
| Dissipation Factor at 60 Hz (x10-³) Dry² | 6 | 120 6 | 5 | 6 | 6 | ASTM D150 |
| Volume Resistivity, ohm.cm 50% RH | 10,13 | 10,13 | 10,13 | 10,13 | 10,13 | ASTM D257 |
| Volume Resistivity, ohm.cm Dry² | 10,16 | 10,16 | 10,15 | 10,16 | 10,16 | ASTM D257 |
| Surface Resistivity, ohm/square 50% RH | 10,11 | 10,12 | 10,12 | 10,12 | 10,12 | ASTM D257 |
| Surface Resistivity, ohm/square Dry² | 10,14 | 10,15 | 10,14 | 10,15 | 10,15 | ASTM D257 |
Mechanical Properties
| Property | Thickness 0.08mm | Thickness 0.13mm | Thickness 0.015mm | Thickness 0.20mm | Thickness 0.25mm | Test Method |
|---|---|---|---|---|---|---|
| Basis Weight, g/m² | 89.2 | 148.4 | 179.5 | 240 | 298 | ASTM D646 |
| Density, g/cc | 1.13 | 1.13 | 1.18 | 1.15 | 1.12 | |
| Tensile Strength, N/cm MD | 31 | 52 | 67 | 91 | 111 | ASTM D828 |
| Tensile Strength, N/cm XD | 22 | 38 | 48 | 65 | 78 | ASTM D828 |
| Elongation, % MD | 2.9 | 3.0 | 3.6 | 3.7 | 3.8 | ASTM D828 |
| Elongation, % XD | 3.0 | 3.4 | 3.7 | 3.7 | 3.8 | ASTM D828 |
| Elmendorf Tear, N MD | 1.1 | 2.0 | 2.6 | 3.6 | 4.9 | TAPPI 414 |
| Elmendorf Tear, N XD | 1.6 | 2.9 | 3.9 | 5.2 | 6.7 | TAPPI 414 |
| Initial Tear Strength, N MD | 9 | 16 | 20 | 28 | 34 | ASTM D1004² |
| Initial Tear Strength, N XD | 6 | 10 | 14 | 19 | 24 | ASTM D1004² |
| Shrinkage at 300°C, % MD | 0.1 | 0.1 | 0.0 | 0.0 | 0.0 | |
| Shrinkage at 300°C, % XD | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
Radiation Resistance
| Property | Dose, Mgy - 0 | Dose, Mgy - 1 | Dose, Mgy - 2 | Dose, Mgy - 4 | Dose, Mgy - 8 | Dose, Mgy - 16 | Dose, Mgy - 32 | Dose, Mgy - 24 | |
|---|---|---|---|---|---|---|---|---|---|
| Tensile Strength, % of original MD | 100 | 96 | 100 | 100 | 100 | 100 | 87 | 40 | ASTM D828 |
| Tensile Strength, % of original XD | 100 | 99 | 100 | 91 | 93 | 90 | 96 | 78 | ASTM D828 |
| Elongation, % of original MD | 100 | 100 | 100 | 91 | 64 | 46 | 46 | 27 | ASTM D828 |
| Elongation, % of original XD | 100 | 86 | 93 | 79 | 64 | 43 | 50 | 21 | ASTM D828 |
| Dielectric Strength, V/mil | 1370 | 1370 | 1400 | 1370 | 1220 | 1350 | 1420 | 1320 | ASTM D149¹ |
| Dielectric Strength, kV/mm | 54 | 54 | 55 | 54 | 48 | 53 | 56 | 52 | ASTM D149¹ |
| Dielectric Constant at 60 Hz | 3.9 | 3.6 | 3.8 | 3.9 | 3.5 | 3.4 | 2.5 | 2.9 | ASTM D150 |
| Dielectric Constant at 1 Hz | 3.3 | 3.0 | 3.3 | 3.4 | 3.1 | 3.0 | 2.3 | 2.7 | ASTM D150 |
| Dielectric Constant at 10 Hz | 2.9 | 2.7 | 2.9 | 3.0 | 2.7 | 2.7 | 2.1 | 2.6 | ASTM D150 |
| Dissipation Factor (x 10-³) at 60 Hz | 103 | 94 | 79 | 93 | 87 | 95 | 67 | 48 | ASTM D150 |
| Dissipation Factor (x 10-³) at 1 Hz | 96 | 93 | 82 | 91 | 82 | 83 | 53 | 40 | ASTM D150 |
| Dissipation Factor (x 10-³) at 10 Hz | 76 | 81 | 75 | 85 | 76 | 73 | 40 | 31 | ASTM D150 |
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