When subjected to high temperatures, the surface will darken. This however has no adverse effect. Eccostock HiK500F offers low moisture absorption and low outgassing properties for space applications. It is used in cavity tuning probes, patch antennas, and dielectric support pieces as well as waveguide
| Typical Properties | Color | white |
| Density (g/cc) | 2.20 | |
| Function | Dielectric | |
| Operating Temperature Max (Celsius) | 204 | |
| Operating Temperature Min (Celsius) | -56 | |
| Outgassing CVCM (%) | 0.041 | |
| Outgassing TML (%) | 0.470 | |
| Resin | Polystyrene | |
| Shelf Life | Minimum 720 Days from Date of Shipment | |
| Type | Low loss dielectric thermoset | |
| Electromagnetic Properties | Loss Tangent | 0.00200 |
| Electrical Properties | Dielectric Constant Max | 30.00 |
| Dielectric Constant Min | 3.00 | |
| Dielectric strength (Kv/mm) | 11.8 | |
| Volume Resistivity | >10^14 Ohm-cm | |
| Mechanical Properties | Coefficient of linear expansion (cm/cm/°c) | 0.000036 |
| Dimensions | Diameter (mm) Max | 50.800 |
| Diameter (mm) Min | 6.400 | |
| Thickness Max (mm) | 76.20 | |
| Thickness Min (mm) | 3.18 | |
| Compliance | REACH | Yes |
| ROHS Compliant | Yes | |
| Options | Option Availability - Machining | Yes |
| Option Availability - on drawing | Yes |
Unit 4B Caerphilly Business Park
Caerphilly CF83 3GS