| Property | ASTM Method | Unit | M-300P | M-400H |
| Mechanical/Physical | ||||
| Zero Strength Time | D-1430 | seconds | 200-300 | 301-450 |
| Specific Gravity | D-792 | g/cm3 | 2.11-2.17 | 2.11-2.17 |
| Water Absorption, 24 Hr. | D-570 | % | 0 | 0 |
| Tensile Strength, 23°C | D-638 | psi | 4,640-5,365 | 4,860-5,710 |
| Elongation, 23°C | D-638 | % | 50-200 | 100-250 |
| Compressive Strength, 23°C at 0.2% offset | D-695 | psi | 5,710-6,430 | 5,280-6,000 |
| Compressive Strength, 23°C at 1% Strain | D-695 | psi | 1,710-2,000 | 1,570-1,860 |
| Impact Strength, 23°C, Notched Izod | D-256 | ft-lb/in | 2.5-3.5 | 2.5-3.5 |
| Flexural Strength | D-790 | psi | 9,860-10,600 | 9,570-10,300 |
| Durometer Hardness, Shore D | D-2240 | D | 85-95 | 85-95 |
| Deformation Under Load, 25°C, 24 hrs/70/kg | D-621 | % | £ 0.2 | £ 0.2 |
| Thermal | ||||
| Melting Point | D-1430 | °C | 210-212 | 210-212 |
| Deflection Temperature (66 PSI) | D-648 | °C | 126 | 126 |
| Maximum Service Temperature | °C | 193 | 193 | |
| Thermal Conductivity | Btu/ft-hr-°F | 1.45 | 1.45 | |
| Thermal Expansion (+ 30°C to -30°C) | D-696 | cm/cm/°C | 7.0 X 10-5 | 7.0 X 10-5 |
| Thermal Expansion (- 30°C to -100°C) | D-696 | cm/cm/°C | 5.1 X 10-5 | 5.1 X 10-5 |
| Flammability | D-635 | non-flammable | non-flammable | |
| Electrical | ||||
| Surface Resistivity, 100% R.H. | D-257 | ohm-sq | 1015 | 1015 |
| Volume Resistivity, 50% R.H. | D-257 | ohm-cm | 2 X 1017 | 2 X 1017 |
| Dielectric Strength, (68 mil film) | D-149 | Volts/mil | 500 | 500 |
| Dielectric Constant, 23°C, 103 Hz | D-150 | 2.6 | 2.6 | |
| Dissipation Factor, 23°C, 103 Hz | D-150 | 0.02 | 0.02 | |
| Arc Resistance | D-495 | seconds | 360 | 360 |