ASA Filament (RFID) - 1kg

ASA (Acrylonitrile Styrene Acrylate) is an engineering-grade filament designed for long-term outdoor applications. It combines excellent UV resistance, weather resistance, impact resistance, and heat resistance, making it ideal for functional parts exposed to sunlight and outdoor environments.

For the best printing results, we recommend the following settings:
• Nozzle Temperature: 240-280°C
• Bed Temperature: 75-100°C
• Print Speed: 50-200 mm/s
• Cooling Fan: Off
• Drying (if needed): 70°C for 7 hours

ASA filament has low moisture sensitivity and generally does not require drying. However, pre-drying is recommended for optimal print results. The recommended setting is 70°C for 7 hours.
When not in use, store the filament in a sealed container with desiccant and keep it away from direct sunlight.

Yes. We strongly recommend using the official Top Cover when printing ASA with the Snapmaker U1.
ASA is sensitive to ambient temperature fluctuations and can warp, crack, or develop poor interlayer adhesion if printed in an open environment. It also produces a noticeable odor during printing, so proper ventilation is recommended.
The Snapmaker U1 Top Cover helps maintain a stable chamber temperature, significantly reducing the risk of warping and improving print quality. It features a three-stage air filtration system for a more comfortable printing experience.
For the best results with ASA, the Top Cover should be installed before printing.

ASA is a non-abrasive filament and can be printed reliably with the standard Stainless Steel Hot End on the Snapmaker U1. The standard hot end fully supports the recommended printing temperatures of 240–280°C.
A Hardened Steel Hot End is generally recommended only for abrasive filaments containing materials such as carbon fiber, glass fiber, or glow-in-the-dark additives.

ASA has a relatively high shrinkage rate. During printing, if different parts of the model cool at different rates, uneven shrinkage creates thermal stress. When this stress exceeds the adhesion between the print and the build plate or the material's resistance to deformation, the corners may lift or the base may warp.
To reduce the risk of warping:
• Use the Top Cover to maintain a more stable chamber temperature and minimize temperature fluctuations during printing.
• Apply glue to the build plate to improve first-layer adhesion.
• Add a brim to increase the contact area with the build plate.
• Avoid printing very large ASA models when possible, as they are more susceptible to thermal stress.
• Keep the enclosure closed throughout the entire print.

Note: A closed chamber does not completely eliminate warping. Its primary purpose is to reduce temperature fluctuations during printing, which helps minimize thermal stress and significantly reduce the risk of warping.

If layer bonding is insufficient:
• Increase the nozzle temperature.  
• Reduce the printing speed.  
• Turn off the cooling fan.
These adjustments improve interlayer adhesion and overall part strength.

ASA is ideal for outdoor and weather-resistant functional parts, including:
• Outdoor functional parts
• Courtyard fixtures
• Outdoor enclosures
• Signs
• Automotive exterior components
• Weather-resistant structural parts

Yes. ASA has a Heat Deflection Temperature (HDT) of 103°C, offering better heat resistance than PLA and PETG. It provides reliable heat resistance for structural parts exposed to outdoor environments.

ASA is specifically designed for long-term outdoor use. Compared with ABS, it offers superior UV and weather resistance, helping reduce yellowing and embrittlement caused by prolonged sun exposure while maintaining reliable color and structural stability over time.