| 2026-04-16 | ||||
| Filament | %RH | Weight – g | Wt gain – g | Gain % |
| PETG White | 14 | – | – | – |
| PETG Black | 14 | – | – | – |
| PETG Orange | 22 | 52.5 | 2.5 | 5.0% |
| PETG Natural | 15 | – | – | – |
| PETG-CF Blue | 23 | 55.4 | 5.4 | 10.8% |
| PETG-CF Gray | 18 | – | – | – |
| PETG-CF Black | 14 | – | – | – |
| PETG Blue | 10 | – | – | – |
| TPU Clear | 14 | – | – | – |
| TPU Black | 14 | – | – | – |
Most of the PolyDryer boxes had the same humidity as before, so I didn’t disturb them. When the humidity starts to rise, then we’ll see what’s going on in there.
The PETG Orange meter continues to misbehave and has been glitching from 22% to 30%. The indicator card shows the humidity is around 10% in there and the relatively low weight gain suggests there’s not much water to be adsorbed.
The PETG-CF Blue spool is new and, once again, shows filament does not arrive bone-dry in the factory wrapper.
Those two boxes now have alumina beads.
Dehydrating the jar of wet silica gel on the induction cooktop (set for 405 °F) sweated it down from 532 g to 503 g over the course of four hours, with nearly all of that change in the first two hours.
Obligatory photo from a while ago, because it looks pretty much the same now:
The Smell of Molten Projects in the Morning 
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