| Clue | Source | Date |
|---|---|---|
| Reinforcing material from car bomb finally located in blaze (6,5) | ||
| Possibly can bribe for strong material | Mirror Cryptic | 03 Feb 2025 |
| Strengthening material | Mirror Quick | 03 Feb 2025 |
| Strong, lightweight polymer (6,5) | ||
| Vehicle on burning heap full of black material | The Telegraph Cryptic | 15 Nov 2017 |