Moisture Control


This section relates to moisture control of filaments as polymers absorb moisture when exposed to humid environments.

  • The absorption rate is dependent on the level of relative humidity found in the print environment, the temperature and the properties of the polymer filament itself.
  • Some polymers quickly absorb moisture and must be dried before and kept dry during printing.
  • The presence of moisture strongly impacts the aesthetics of the printed part and the layer adhesion.
  • Most polymers degrade in the presence of moisture when exposed to high temperatures.

Filament Drying Procedure

The process to remove the moisture is driven by the environmental temperature and/or relative humidity. A forced-air convection oven helps control the environmental temperature and relative humidity. A forced-air convection oven removes the water molecules from the environment that surrounds the polymer filament.

Use the recommended temperature and time outlined in the table below for the material that is used. Make sure that the spool that is used to hold the filament is heat-resistant to a temperature above the drying process. Re-spool the filament, if necessary.

All polymer materials purchased from AON3D use heat-resistant spools and do not need to be re-spooled.

AON3D Readyprint™ materials undergo additional factory drying and possess superior packaging, providing a reliable out-of-the-box 3D printing experience and high quality results. Initial drying is not required.

Material Moisture Sensitivity Drying Temperature Drying Time
AON3D ABS 💧 80ºC 4-6 hours
AON3D HIPS 💧 60ºC 2-4 hours
AON3D Readyprint™ HIPS 💧 60ºC 2-4 hours
AON3D Readyprint™ ASA 💧 80ºC 2-4 hours
AON3D Readyprint™ Carbon Fiber ABS 💧 80ºC 4-6 hours
AON3D Readyprint™ ESD ABS 💧 80ºC 4-6 hours
AON3D Readyprint™ Carbon Fiber PETG 💧 65ºC 2-4 hours
AON3D Readyprint™ PC 💧💧💧 100ºC 6 hours
AON3D Readyprint™ PEI 9085 💧💧💧 120ºC 4-6 hours
AON3D Readyprint™ PEKK-A 💧💧💧 120ºC 4-6 hours
Kimya PEBA-S 💧💧💧 80°C 2-4 hours
AquaSys® 120 💧💧 75ºC 8 hours
AquaSys® 180 💧💧 85ºC 4-6 hours
Xioneer VXL 111 💧💧 60ºC 2-4 hours
Xioneer VXL 130 💧💧 N/A N/A

Legend: 💧 = Low 💧💧= Medium 💧💧💧= High

To purchase consumables, spares and filaments, refer to the Buy Parts section.

Filament Storage

When the filament is not in use, it is important to store it in a cool, dry, and clean place. Use a sealed bag or box with silica desiccant packs to prevent moisture absorption.

For materials that have a high moisture sensitivity, the use of moisture grabbers in a sealed bag is not enough for total protection from moisture. The procedure to dry these materials is always encouraged before a print is started.

Last modified: July 3, 2024