Material comparison
Durable, resistant to chemicals and water; ideal for everyday use. Resists sun, weather and chemicals; the material for outdoor use. So which one is right for your project? Compare the values, strengths and weaknesses side by side.
Most popularPolyethylene terephthalate glycol
PETG is made from heat-treated PET plastic. It is known for its durability, transparency, impact and chemical resistance. Thanks to its scratch resistance, it is one of the most balanced choices for functional parts.
Most popularAcrylonitrile styrene acrylate
ASA has properties similar to ABS but is far more resistant to UV, weather and chemicals. It does not yellow or fade in sunlight and gives a smooth surface finish.
Values
| Property | PETG | ASA |
|---|---|---|
| Density | 1.27 g/cm³ | 1.07 g/cm³ |
| Tensile strength | 52 MPa | 50 MPa |
| Elongation at break | 83 % | 30 % |
| Modulus (stiffness) | 1.07 GPa | 1.85 GPa |
| Heat deflection (0.45 MPa) | 64 °C | 88 °C |
Decision
Good to know
In terms of tensile strength, PETG (52.2 MPa) and ASA (50 MPa) are close.
ASA is more heat resistant: 88 °C, versus 64 °C for PETG.
PETG is usually easier to produce; it needs less special equipment and tuning.
In general, PETG is more economical. The exact price is set in the quotation based on part size, quantity and technology.
Tell us the operating conditions; let's decide together which of the two fits, or find a better alternative.