ASA is an engineering plastic for outdoor use: it is more resistant to sunlight (UV), weather and moisture. At HEDRAFT, we print ASA fixtures, housings and technical parts that must operate outdoors or in humid environments, while maintaining their appearance and geometry.

ASA - for outdoor use, resistant to UV radiation and weather conditions

ASA is chosen if the part will be exposed to outdoor conditions such as sun, rain and temperature fluctuations. This material is suitable for outdoor fixtures and housings where UV resistance and dimensional stability are essential.

Where ASA is suitable:

• Outdoor fasteners and brackets (for facade, yard, garage)

• Outdoor housings/enclosures: sensors, cameras, enclosures

• Parts in a humid environment (with condensation/splash)

• Cars/Boats/Outdoor Equipment (outside extreme heat areas)

• Outdoor decorative and technical elements (signs, mounting frames)

• Spare parts and repair parts for outdoor environments

• Elements where outdoor appearance is important (ASA ages well in the sun)

When ASA is not the best choice

• High load and wear components - PA/PAHT-CF is a better solution.

• Indoor connections require maximum precision - sometimes PETG/PETG HF is a simpler solution.

• Very high temperatures near the heating element - consider ABS/PAHT-CF (depending on the application).

• Flexibility is required - TPU.

Why choose ASA?

• UV (sun) resistance - the material is designed for outdoor use.

• Withstands moisture and weather conditions well.

• Stable appearance during long-term use.

• Suitable for external enclosures and assembly applications where PETG/PLA does not hold up.

What we need to find out before ASA printing

• Where will the product be installed: outdoors/under a canopy/inside a box?

• Are there direct sunlight: constant or periodic?

• Will there be contact with water: rain/splash/condensation?

• Temperature conditions: summer/winter, near heating

• Load type: static/wind/vibration

• Are metal inserts/posts required (if mounting block)?

Examples of ASA products

• Outdoor brackets and mounts

• Sensor/camera/electronics housings

• Outdoor enclosures, covers and protective elements

• Spare parts for outdoor equipment

Frequently asked questions:

Is ASA better on the street than ABS?

Yes. ASA is usually chosen for exterior parts because it has better UV and weather resistance. ABS is more commonly used indoors because of its temperature resistance.

Doesn't ASA fade in the sun?

Is ASA suitable for outdoor enclosures?

Is ASA stronger than PETG?

Is ASA suitable for humid environments?

Yes, ASA is ideal for outdoor enclosures, enclosures and protective elements.

Yes, ASA is suitable for conditions with humidity and condensation. For constant contact with water or chemicals, the material should be selected individually for the intended application.

ASA is significantly more resistant to sunlight than many other plastics, making it a popular choice for parts intended for outdoor use. However, the final result depends on the operating conditions and the color - we will recommend the best option.

PETG is often "stickier" in terms of impact resistance, while ASA is valued for its outdoor and UV resistance. The choice depends on the conditions: outdoors → usually ASA, indoors → often PETG.

If you need street + cargo - which is better?

For outdoor use we usually choose ASA, but where there is significant load/wear we consider PA/PAHT-CF and structures with metal inserts.