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| NEMA C is an economy grade mechanical laminate that possesses high impact strength. It is used for gears, pinions, bearings, bushings, and many other structural applications. |
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A mechanical grade of medium weave cotton cloth laminate impregnated and cured with phenolic resin. |
Sheet sizes 36 x 72, 36 x 48, 48 x 48, 48 x 96, and 48 x 108 in. thicknesses .031 in to 10 in; cut and fabricated per drawing . |
Natural & Black |
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Density |
92 lbs/ft3 - .053 lbs/in3 |
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Maximum operating temperature |
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electrical |
239° F (115° C) |
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mechanical |
257° F (125° C) |
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Water absorption |
2.2% |
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Hardness (Rockwell M) |
100 |
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Compressive strength |
39,000 psi |
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Tensile strength |
13,000 psi |
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Flexural strength |
20,000 psi |
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Shear (flatwise) |
13,000 psi |
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Impact strength - Izod edgewise with grain |
2.3 ft-lb/in |
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Dielectric strength |
200 vpm |
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Dielectric constant (@ 106 cycles per second) |
n/a |
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Volume resistivity |
n/a |
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Arc resistance |
n/a |
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Parallel dielectric |
21kv |
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