What is ASA filament?

1 min read

ASA filament is a type of 3D printer filament that stands for Acrylonitrile Styrene Acrylate. It is a popular thermoplastic material used in fused deposition modeling (FDM) 3D printers. ASA filament is known for its high strength, durability, and resistance to weathering and UV radiation, making it suitable for outdoor applications.

eASA print model (3)

ASA filament shares some similarities with ABS filament but with a few key differences. ASA has improved weather resistance compared to ABS, making it less prone to yellowing or becoming brittle when exposed to sunlight. It also has better resistance to chemicals, such as acids and alkalis. ASA filament typically has a higher glass transition temperature (around 95-105°C) compared to ABS filament, which means it can withstand higher temperatures before deforming.

When 3D printing with ASA filament, it is important to note that it requires a heated print bed to prevent warping and promote good adhesion to the build surface. The recommended printing temperature for ASA 3D printer filament is typically around 230-260°C. It is advisable to print ASA filament in a well-ventilated area or with a fume extraction system, as it can release some fumes during the printing process.

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