Acrylonitrile styrene acrylate (ASA): melt temperature, drying, shrinkage
Typical values for Acrylonitrile styrene acrylate (ASA, amorphous) in injection moulding: melt temperature 230–260 °C, mould temperature 60–80 °C, shrinkage 0.4–0.7 %, drying: 2 h at 80 °C. The processing window below shows melt and mould temperature on one scale; the app covers more than 150 materials.
Processing window
ASA Acrylonitrile styrene acrylate, amorphous
Melt temperature 230–260 °C
Mould temperature 60–80 °C
- Drying
- 2 h at 80 °C
- Density
- 1.07 g/cm³
- Cavity pressure
- 300–750 bar
- Shrinkage
- 0.4–0.7 %
Typical values for standard grades from the Resinovo material guide. They do not replace the manufacturer’s datasheet.
ASA at a glance
ASA is similar to ABS but considerably more resistant to weathering and UV. It is used for exterior parts such as mirror housings, garden equipment and façade profiles.
Dry before processing, as with ABS. The mould temperature visibly affects gloss and surface quality.
Processing data for ASA
- Melt temperature: 230–260 °C
- Mould temperature: 60–80 °C
- Drying: 2 h at 80 °C
- Density: 1.07 g/cm³
- Cavity pressure: 300–750 bar
- Processing shrinkage: 0.4–0.7 %
All values are typical figures for preselection. The manufacturer’s datasheet applies to the specific grade, and sampling on the machine decides the process.
Frequently asked questions
What processing temperature does ASA have?
The melt temperature for Acrylonitrile styrene acrylate is 230–260 °C and the mould temperature 60–80 °C (typical values).
Does ASA have to be dried before processing?
Yes. Typical value for Acrylonitrile styrene acrylate: 2 h at 80 °C. The manufacturer’s datasheet for the grade in use is what counts.
How high is the shrinkage of ASA?
The processing shrinkage of Acrylonitrile styrene acrylate is 0.4–0.7 %. It depends on wall thickness, holding pressure, mould temperature and grade.
What cavity pressure applies to ASA?
The range for Acrylonitrile styrene acrylate is 300–750 bar. The clamping force calculator and the app start with the mean of 525 bar; you can adjust the value.
More on ASA in the app
All properties
Flow behaviour, MVR and MFR, thermal conductivity, heat deflection, mechanical properties, fire rating and processing notes.
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Density, cavity pressure and temperatures feed straight into the calculators and ResiCheck.
Read on
- Clamping force calculator
- Shot volume calculator
- Cooling time calculation
- Injection moulding defects: causes and remedies
- Material guide: all values at a glance
More materials: PP · HDPE · ABS · PA6 · PA66 · POM · PMMA · PC · PC/ABS · PET · PBT · PS · SAN · TPU · PEEK · PPS · PP-GF
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