PET filament
Unmodified polyethylene terephthalate. Stiffer and more heat-resistant than PETG and harder to print; usually natural or transparent.
- Enclosure recommended — Shrinks enough while cooling that draughts cause warping and split layers. An enclosure, or simply a still room, makes the difference.
- Keep dry — Absorbs moisture from the air, which prints as stringing, popping and weak layers. Filament that has sat out usually needs drying before use.
Engineering materials · 65 color variants from 9 brands · 41 with a retailer link.
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