Where to farm Polyester Lump in Arknights, what to craft it from, and which operators need it.
| Stage | Drop tier | ~Sanity/ea |
|---|---|---|
| 3-8 · byproduct | Sometimes | ≈128.6 |
| 6-4 · byproduct | Sometimes | ≈128.6 |
| 9-7 · byproduct | Sometimes | ≈128.6 |
| 12-18 · byproduct | Sometimes | ≈150.0 |
| 13-12 · byproduct | Sometimes | ≈150.0 |
| 15-6 · byproduct | Sometimes | ≈150.0 |
To make 1 of [object Object]: Polyester Pack×2 + Aketon×1 + Loxic Kohl×1
| Operator | Rarity | Qty |
|---|---|---|
| Hellagur | 6★ | 18 |
| Mostima | 6★ | 17 |
| Ifrit | 6★ | 17 |
| Hoshiguma | 6★ | 17 |
| Astesia | 5★ | 15 |
| Nearl | 5★ | 12 |
| Texas | 5★ | 12 |
| Nightingale | 6★ | 11 |
| Magallan | 6★ | 11 |
| Shining | 6★ | 11 |
| Skyfire | 5★ | 11 |
| Firewatch | 5★ | 11 |
| Schwarz | 6★ | 9 |
| Bison | 5★ | 8 |
| Sora | 5★ | 8 |
| Specter | 5★ | 8 |
| Warfarin | 5★ | 8 |
| Istina | 5★ | 8 |
| Flamebringer | 5★ | 8 |
| Glaucus | 5★ | 7 |
| Breeze | 5★ | 7 |
| Ceylon | 5★ | 7 |
| Cliffheart | 5★ | 7 |
| Exusiai | 6★ | 6 |
| Ch'en | 6★ | 6 |
| Skadi | 6★ | 5 |
| Siege | 6★ | 5 |
| Saria | 6★ | 4 |
| Eyjafjalla | 6★ | 4 |
| Nightmare | 5★ | 4 |
| Projekt Red | 5★ | 4 |
| Amiya | 5★ | 4 |
| Waai Fu | 5★ | 4 |
| Zima | 5★ | 4 |
| Lappland | 5★ | 3 |
| Mayer | 5★ | 3 |
| Silence | 5★ | 3 |
| Indra | 5★ | 3 |
| Pramanix | 5★ | 3 |
To total several operators with a crafting-aware farm plan, use the Arknights Calculator.