Storage

Filament Storage: How to Store Your 3D Printing Filament Properly

Proper storage of 3D printing filament is crucial to ensure high-quality print results and maximize the material's lifespan. Filaments, especially those made from hygroscopic materials like PLA, ABS, or Nylon, tend to absorb moisture from the air. This can lead to printing issues such as irregular layers, poor adhesion, or even clogs in the print head. To avoid such problems, you should store your filament correctly. In this article, you will learn why filament storage is so important, what techniques exist, and which products can help you keep your filaments in optimal condition.

Why is Filament Storage Important?

Filaments consist of plastics that can absorb moisture from the surrounding air. These hygroscopic properties cause the quality of the filament to deteriorate over time if stored unprotected. Once moisture penetrates the material, small water droplets can form inside the filament. These evaporate during the printing process and cause problems such as bubbling, brittleness, and uneven print results. Filaments particularly sensitive to moisture include Nylon, PETG, PLA, and ABS.

In addition to moisture, UV rays and high temperatures can also damage the filament. UV light can lead to material degradation, making it brittle. High temperatures can deform the filament or impair its properties.

Options for Filament Storage

1. Airtight Containers: One of the simplest and most effective methods to store filaments is using airtight containers. These are plastic boxes or containers with a tightly sealing lid that prevent moisture from coming into contact with the filament. For extra security, silica gel packets can be placed inside the container to absorb residual moisture.

2. Vacuum Bags: Vacuum bags are a popular choice for storing filaments because they remove air from the bag and thus effectively keep moisture away. Many filament manufacturers supply their products in such vacuum bags, which are reusable. When storing, desiccant packets can be added to absorb residual moisture.

3. Filament Dry Boxes: For users who want to be extra safe, filament dry boxes are an excellent solution. These special boxes actively dehumidify the filament while providing a storage solution. Dry boxes like the Sunlu Filament Dry Box feature heating functions that keep the filament at a constant temperature, ensuring moisture is continuously removed.

4. Cabinets with Dehumidifiers: A cabinet or storage shelf with an integrated dehumidifier is an excellent solution for those who need to store many rolls of filament. These cabinets are equipped with powerful dehumidifiers that keep humidity low and enable long-term storage.

5. Temperature-Controlled Rooms: If space allows, a dedicated room for filament storage can be set up. Here, humidity can be controlled with a room dehumidifier and temperature with an air conditioner. This method is especially useful for professional 3D printer operators who keep large quantities of filament in stock.

Tips for Proper Filament Storage

1. Use Desiccants: Silica gel packets are a cost-effective method to absorb excess moisture from the environment. These packets should be regularly replaced or reactivated to maintain their effectiveness.

2. Constant Temperature: Store filaments at a constant temperature, ideally between 15 and 25 degrees Celsius. Avoid direct sunlight or hot environments to prevent material damage.

3. Regularly Check Rolls: Even with proper storage, you should regularly check your filament rolls for signs of moisture or damage. A brittle or sticky surface may indicate that the filament has absorbed moisture.

4. Store in Original Packaging: If possible, store the filament in its original packaging. Many manufacturers supply their products in resealable bags with desiccants, which provide a good basis for long-term storage.

5. Plan Consumption: Avoid having too many filament rolls in stock. Plan your consumption in advance and only buy the amounts you need within a certain time frame. This reduces the risk of filaments being stored for a long time and getting damaged.

Important Products for Filament Storage

1. Silica Gel Packets: These small bags are ideal for absorbing moisture from airtight containers. They can be purchased in large quantities and replaced regularly.

2. Vacuum Bags with Pump: Reusable vacuum bags are an excellent solution for filament storage. With a hand pump, you can remove the air from the bag and protect the filament rolls from moisture.

3. Filament Dry Boxes: Electric dry boxes offer active dehumidification and are ideal for keeping filament dry during printing. You can use the filament directly in the box without constantly removing it.

4. Dehumidifiers for Cabinets or Rooms: For larger storage solutions, dehumidifiers are a sensible investment. These devices keep the humidity in a room constant and thus protect large amounts of filament from moisture.

5. Airtight Containers: Plastic boxes with sealable lids are a cost-effective method to store filament rolls safely and dry.

Conclusion

Proper filament storage is an essential factor to ensure the lifespan and quality of your 3D printing materials. Moisture is the biggest enemy of filaments, so they should always be stored in a dry environment. By using airtight containers, desiccants, vacuum bags, and filament dry boxes, you can ensure that your materials remain in optimal condition and are ready for use at any time.