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PC (Polycarbonate) filament

PC filament is a printing filament for 3D printers based on a material called polycarbonate. This material is known for its high strength, toughness and resistance to high temperatures. Because of its toughness, it can withstand impact and bending without cracking easily. One of its properties is also optical clarity, which means that prints made from it can be transparent, similar to glass. Printing from polycarbonate requires specific conditions. A high nozzle temperature, often in excess of 260 °C, and a heated substrate with a temperature of around 100 °C or more are required. Not all conventional 3D printers reach these temperatures. The material also has a significant tendency to shrink as it cools, causing the model to twist and peel away from the print pad, known as "warping". To combat this, it is recommended, and often necessary, to use a printer with an enclosed and ideally heated print area. Polycarbonate is highly hygroscopic, meaning it absorbs airborne moisture. Therefore, the filament must be thoroughly dried before printing and stored in a dry environment, otherwise moisture will cause problems during printing such as bubbles in the print and reduced strength of the part. Due to its properties, it is used for the production of mechanically stressed parts, functional prototypes, protective covers or components that must withstand higher temperatures at which more common materials such as PLA or PETG would deform. There are also blends, such as PC-ABS, which combine the properties of polycarbonate with other plastics in an attempt to make printing easier while retaining some of its key characteristics.

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