Table 2.
Technical characteristics of 1801 Sheet Stock and 1801 Sheet Stock of Velostat film.
| Technical Features | Velostat Film 1801 Sheet Stock |
Velostat Film 1840 Sheet Stock |
|---|---|---|
| Dimensions | 11″ × 11″ (280 mm × 280 mm) | |
| Weight | 18.66 g | |
| Temperature Limits | −45 °C to 65 °C (−50 °F to 150 °F) | |
| Heat Sealable | Yes | |
| Volume Resistivity | <500 ohm-cm | |
| Surface Resistivity | <31,000 ohms/sq.cm | |
| Hardness | 58–62 Shore D | 67–71 Shore D |
| Heat Deflection Temp | 38–43 °C @ 264 PSI | 100 °C @ 66PSI 50 °C @ 264 PSI |
| Water Absorption | 0.1–0.2% | 0.1–0.2% |
| Vicat Softening | 88–92 °C | 148 °C |
| Flammability | 4.5–5.5 cm/min | 2 cm/min |
| Impact Resistance | 2.9–3.7 ft.-lbs./in. @ 72 °F | 8–10 ft.-lbs./in. @ 72 °F |
| Notched Izod | 0.6–1.3 ft.-lbs./in. @ 25 °F | 7–9 ft.-lbs./in. @ 25 °F |
| Maximum Temp. Exposure | 150 °F | 180 °F |
| Tensile Strength | 1700–2000 PSI | 2800–3000 PSI |
| Flex Modulus | 40,000–50,000 PSI | 130,000–150,000 PSI |
| Mold Shrinkage | 15–20 mil/in. | 10–20 mil/in. |
| Volume Conductive | <500 ohms-cm | <500 ohms-cm |