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| Property (at 25°C unless otherwise noted) | Test Method | Typical Value |
| Mechanical Properties: | ||
| Viscosity | ASTM D-1084 | 100 cP |
| Surface tension | plate method | 50 dyne/cm |
| Specific gravity | ASTM D-1217 | 1.20 |
| Bulk modulus | t.b.d. | 30,000 kg/cm2 |
| Thermal Properties: | ||
| Glass transition temperature | TMA/DSC | -40°C, estimated |
| Pour point | ASTM D-97 | -25°C |
| Thermal expansion by volume | ASTM D-1903 | 6.3 x 10-4 cc/cc/°C |
| Thermal conductivity | ASTM C-177 | 0.13 watt/(meter-°C) |
| Evaporation rate (24 hours, 100°C): | ASTM D-972 | 0.1% estimated |
| TGA Take-off, 1% mass loss | TGA | 200°C |
| Electro-optical properties: | ||
| Appearance | Visual | Crystal clear, straw tint |
| Ionics (K, Na, P, Ag, Cu, Sn) | ICP | < 10 ppm, each, est. |
| Volume resistivity | ASTM D-257 | > 1015 ohm-cm, est. |
| Dielectric constant (1 MHz) | ASTM D-150 | t.b.d. cgs units |
| Dissipation factor (1 MHz) | ASTM D-150 | t.b.d. cgs units |
| Refractive index, 589 nm | ASTM D-1218 | 1.67 |
| Refractive index vs. Temp., 589 nm | ASTM D-1218 | -4.9 x 10-4/°C |
| Refractive index vs. wavelength | prism coupler | See chart |
| Optical absorption | spectrophotometer | See chart |
| Particle contamination | MIL-STD-1246C | Level 25, est. |
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