Today, with the increasing maturity of 3D printing technology, PETG filament is widely used in various printing projects due to its advantages of high transparency, good mechanical properties and low odor. However, PETG filament has a strong water absorption, exposed to the air is prone to moisture, which will not only affect the printing effect, and may even lead to printing failure. According to statistics, the probability of damp PETG filament problems during the printing process is twice that of dry filament. Therefore, preventing moisture in PETG filament not only improves print quality, but also saves additional costs due to material problems.

First of all, sealed storage is the basic method to prevent wet PETG filament.

PETG filament should be stored in a sealed bag or sealed box immediately after use to prevent the intrusion of moisture in the air. There are specialized 3D printed filament sealing boxes on the market, and these sealing boxes are usually equipped with desiccant, which can further absorb the moisture inside the box and keep the filament dry. In addition, you can also use a ziplock bag, put the filament into the bag, try to discharge the air in the bag, and then seal the bag mouth. Sealed storage is not only simple and effective, but also extends the service life of the filament.

Secondly, controlling the storage environment is also the key to preventing wet PETG filament.

The ideal storage environment should be a dry, cool place, away from direct sunlight and high temperatures. The humidity should be controlled below 40%, and the temperature should be between 15 ° C and 25 ° C. In such an environment, the moisture absorption rate of PETG filament will be greatly reduced, thus extending its service life. If conditions permit, use a dehumidifier or air conditioner to control the humidity and temperature of the storage environment. A good storage environment can provide a stable "home" for PETG filament, ensuring that it is always available.

Third, the use of desiccant is a cost-effective way to prevent wet PETG filament.

Put an appropriate amount of desiccant in a sealed box or zip-lock bag to absorb the moisture around the filament and keep it dry. Commonly used desiccant are silica gel desiccant and physical desiccant. Silica gel desiccant has the characteristics of strong moisture absorption and reusable, while physical desiccant is cheap, but it needs to be replaced regularly. Selecting the appropriate desiccant according to the actual situation can effectively prevent the PETG filament from getting damp. Desiccant is like a small "dehumidifier", which can create a small dry environment for the filament.

In addition, PETG filament that has been damp can be dried using a dryer.

The drying temperature is recommended to be controlled at about 60 ° C, and the time is generally 2 to 4 hours. It should be noted that the state of the filament should be observed regularly during the drying process to avoid the deformation or performance decline of the filament caused by too high temperature. The dried filament should be stored in a sealed bag or a sealed box as soon as possible to prevent moisture again. Through proper drying treatment, the performance of damp filament can be restored and waste can be reduced.

Finally, regular inspection is also an important measure to prevent wet PETG filament.

Before using PETG filament, it should be checked for signs of moisture, such as whether there is water on the surface of the filament and whether the feel is wet. If the filament is found to be damp, measures should be taken in time to deal with it. In addition, it is recommended to clean the storage environment regularly to ensure the sealing performance of the sealed bag or sealed box, and the effectiveness of the desiccant. Through regular inspection, we can not only find and solve problems in time, but also develop good habits to ensure that every printing goes smoothly.

To sum up, the prevention of PETG filament moisture needs to start from many aspects such as sealed storage, control of storage environment, use of desiccant and regular inspection. Only by doing these details well can we ensure the drying and printing quality of PETG filament, thereby improving the efficiency and success rate of 3D printing. I hope that the method introduced in this article can be helpful to the majority of 3D printing enthusiasts.