Explore the ASA 3D filament by ColorFabb. ASA is a weather proof material being quite resilient against UV light and rain, while LW-ASA also enables you to reduce the weight of your objects.
ASA filament by ColorFabb is a material for more advantaged 3D printer users as the material prints more like ABS, while warping and shrinking is more manageable. The material has two key selling points: its inherent UV stability and high temperature resistance of 96 °C. This results in a well suited material for outdoors.
ASA is more susceptible to warping compared to PLA or PETG type filaments. Especially models with a large footprint can shrink and warp during printing, but compared to ABS in most cases less severe.
Apart from using a large brim and heated buildplate of 90-100°C (or higher if your machine is capable) we can also advice the following. Print a tall skirt around your model to reduce cold air flow around the printed model or print inside an enclosure for better control of the environment temperature.
Compared to the ColorFabb ASA the LW-ASA 3D filament has comparable features. However, the ColorFabb LW-ASA material is capable of increasing its volume nearly 2.5 times. The filament density is close to 1,07 g/cm3, but when foamed at its maximum capacity users will achieve part density close to 0.43 g/cm3. The foaming process consists of printing at higher temperature, caising the filament to foam and increase in volume.
LW-ASA is more susceptible to warping compared to PLA or PETG type filaments. Models with a large footprint can shrink and warp during printing, albeit compared to ABS in most cases less severe.
Apart from using a large brim and heated buildplate of 90-100C (or higher if your machine is capable) we can also advice to print a tall skirt around your model to reduce cold air flow around the printed model or even better: print inside an enclosure for better control of the environment temperature.