PLA: 45–55 °C (113–131 °F)
ABS: 70–80 °C (158–176 °F)
PETG: 60–70 °C (140–158 °F)
Nylon (PA6/PA12): 70–90 °C (158–194 °F)
PVA: 40–50 °C (104–122 °F)
TPU / TPE: 50–55 °C (122–131 °F)
ASA: 60–70 °C (140–158 °F)
PP (Polypropylene): 55–65 °C (131–149 °F)
HIPS: 60–70 °C (140–158 °F)
PC (Polycarbonate): 80–100 °C (176–212 °F)
PEEK: 120–150 °C (248–302 °F) (Industrial drying equipment recommended)
Desiccant Reactivation: Follow manufacturer instructions (typically 80–120 °C or higher)

3D printing filaments are hygroscopic, meaning they naturally absorb moisture from the surrounding air. When stored improperly or exposed to high humidity, filament can absorb water over time, which may negatively affect print quality.

Taking PLA as an example, even though it is less moisture-sensitive than materials like Nylon or TPU, prolonged exposure to humid environments can still cause printing issues. During extrusion, moisture trapped inside the filament can rapidly evaporate, leading to:

• Popping or crackling sounds from the nozzle
  
• Increased stringing
  
• Bubbles or rough surface texture
  
• Inconsistent extrusion
  
• Reduced layer adhesion
  

For highly hygroscopic materials such as Nylon, TPU, PVA, and PC, proper drying becomes even more important. Moist filament can significantly reduce print reliability and make it difficult to achieve smooth, accurate, and consistent results.

Once filament is removed from a sealed bag, it gradually begins absorbing moisture from the environment. In humid conditions, even properly stored filament may eventually require drying before printing.

A filament dryer uses controlled heat and airflow to remove moisture from the filament. Unlike simple storage boxes with desiccants, a dryer actively restores filament condition by reducing absorbed moisture before or during printing.

Dry filament helps improve:

• Print success rate
• Surface quality
• Dimensional accuracy
• Layer bonding
• Overall printing consistency

Different materials require different drying temperatures. A suitable filament dryer should provide accurate temperature control and enough heating capability for the materials you commonly print.

Sovol offers multiple filament drying solutions designed for different printing needs:

• SH01 Filament Dryer – A compact and affordable option for everyday materials such as PLA, PETG, TPU, and more.
  
• SH02 Filament Dryer – Provides a wider temperature range for users working with more material types.
  
• SH03 Filament Dryer – A high-capacity solution with dual chambers, higher heating power, and advanced temperature control for demanding materials.
  

Whether you print PLA for everyday projects or moisture-sensitive materials like Nylon and TPU, proper filament storage and drying can help you achieve more reliable and higher-quality prints.