← Back to Protected Aluminum
FUV Aluminum (Magnesium Fluoride)
Far-ultraviolet aluminum coating protected with a magnesium fluoride overcoat, optimized for high reflectance down to 121 nm. This coating is also available as a UV-enhanced aluminum for the 200–300 nm band, designed to meet a minimum reflectance of >91% at 215 nm and 0° AOI, with a goal of >93%.
- Durability: Passes MIL-13830-B
Reflectance by Band
| Band | Avg. Reflectance | Min Reflectance |
|---|---|---|
| 200-210 nm | 94% | 93% |
| 210-220 nm | 93% | 91% |
| 220-230 nm | 92% | 91% |
| 230-240 nm | 92% | 91% |
| 240-250 nm | 92% | 91% |
| 250-260 nm | 92% | 91% |
| 260-270 nm | 92% | 91% |
| 270-280 nm | 92% | 91% |
| 280-290 nm | 92% | 91% |
| 290-300 nm | 91% | 91% |
| 300-400 nm | 89% | 86% |
| 400-500 nm | 87% | 86% |
| 500-600 nm | 88% | 86% |
| 600-700 nm | 88% | 86% |
| 700-800 nm | 86% | 83% |
Environmental Durability
| Test | Specification | Description |
|---|---|---|
| Adhesion | MIL-PRF-13830B B.4.4.6 | Slow-pull, 90-deg |
| 24-hr Humidity | MIL-PRF-13830B | 50C/95%/24-hr |
| Thermal Cycle | ZeCoat Modified 13830B B.4.4.4 | +100 C / -75 C |