Filaments/How to Store Filament
Care

How to Properly Store 3D Printer Filament

Andrew Smith
January 15, 2024
5 min read
Proper Filament Storage

Proper filament storage is critically important for quality 3D printing. Improperly stored material can absorb moisture, lose properties, and lead to printing problems. In this guide, we'll cover all aspects of proper storage.

Main Threats to Filament

Moisture Absorption

Consequences:

  • •Bubbles during printing
  • •Poor layer adhesion
  • •Uneven surface
  • •Nozzle clogging

Vulnerable Materials:

PLA
PETG
Nylon
PVA
UV Degradation

Consequences:

  • •Color change
  • •Loss of strength
  • •Material brittleness

Vulnerable Materials:

PLA
ABS
PETG
Temperature Changes

Consequences:

  • •Spool deformation
  • •Diameter changes
  • •Internal stress

Vulnerable Materials:

All types

Storage Methods

Vacuum Bags
$5-10
Long-term storage

Advantages:

  • ✓Maximum moisture protection
  • ✓Compact storage
  • ✓Transparency

Disadvantages:

  • ✗Single-use
  • ✗Can damage spool
Airtight Containers
$15-30
Active use

Advantages:

  • ✓Reusable
  • ✓Protection from damage
  • ✓Easy access

Disadvantages:

  • ✗Take up more space
  • ✗More expensive
Dry Boxes with Heating
$50-150
Professional use

Advantages:

  • ✓Active drying
  • ✓Humidity control
  • ✓Professional solution

Disadvantages:

  • ✗High price
  • ✗Consume energy

Step-by-Step Storage Guide

Proper Storage Algorithm:

  1. 1
    Preparation: Make sure the filament is dry. If necessary, dry it in an oven at 40-50°C for 4-6 hours.
  2. 2
    Add desiccant: Place silica gel packets (2-4 per spool) in the container.
  3. 3
    Sealing: Place the spool in an airtight container or vacuum bag.
  4. 4
    Labeling: Mark the packaging date, material type, and color for convenience.
  5. 5
    Placement: Store in a cool, dry place away from direct sunlight.

Storage Conditions by Material Type

MaterialHumidityTemperatureSpecial Notes
PLA<40%15-25°CMoisture sensitive
ABS<60%15-30°CLess sensitive
PETG<45%15-25°CMedium sensitivity
TPU<50%15-25°CAvoid compression
Nylon<20%15-25°CVery hygroscopic

Signs of Spoiled Filament

Visual Signs
  • • Color change or cloudiness
  • • White residue on surface
  • • Brittleness and breakage
  • • Spool deformation
Printing Problems
  • • Bubbles and popping during extrusion
  • • Poor layer adhesion
  • • Uneven surface
  • • Nozzle clogging

Restoring Wet Filament

Drying Methods:

Oven (budget method):

  • • PLA: 40-45°C, 4-6 hours
  • • ABS: 60-70°C, 2-4 hours
  • • PETG: 65-70°C, 4-6 hours
  • • Use a thermometer for control

Food Dehydrator (recommended):

  • • More precise temperature control
  • • Even heating
  • • Safe for spools
  • • Can dry multiple spools

Conclusion

Proper filament storage is an investment in the quality of your prints. By spending a little time and money on storage organization, you'll save a lot of time troubleshooting printing problems and get consistently high-quality results.

Practical Tip

Keep a filament storage log with packaging dates and conditions. This will help track shelf life and the effectiveness of different storage methods.

Back to Filaments
Next Article →