Somos 9120 for SLA 3D Printing

Somos 9120 is translucent in appearance and is our most flexible stereolithography material available.

3D Printed PP-like Translucent White (Somos 9120) Part

What is Somos 9120 Material?

Somos 9120 is translucent in appearance. It’s also the most flexible stereolithography material available with a flexural modulus of 1,600 MPa. Its mechanical properties are similar to the average values of injection-molded polypropylene except for a
slightly lower elongation at break.


PP-Like Translucent is often used for medical device prototypes, electrical casings, fluid flow analysis parts, and automotive components.


For well-designed parts, tolerances in the X/Y dimension of ±0.002 in. (0.05mm) for the first inch plus ±0.001 in./in.,
and Z-dimension tolerances of ±0.005 in. (0.127mm) for the first inch plus ±0.001 in./in. (0.001mm/mm), can typically be achieved.
Note that tolerances may change depending on part geometry.

Key Product Benefits

  • Translucent
  • Semi-flexible
  • Enhanced feature details

Related Materials

  • PC-Like Advanced High Temp (Accura 5530) 
  • ABS-like Gray (Accura Xtreme Gray)
  • ABS-like Black (Accura 7820)
  • MicroFine™ (Gray and Green)

Somos 9120 Properties

All of the figures contained on this data sheet are approximate and dependent on a number of factors, including but not limited to, machine and process parameters. The information provided is therefore not binding and not deemed to be certified.

Property Test Method Value
Color - White
Density in solid state* @ 25 °C (77 °F) 1.13 g/cm³
Water absorption (20 °C, 50% relative humidity) ASTM D570 -
E-module (x-y plane) ASTM D638, test speed 10mm/min 1,600 ± 300 MPa
Tensile strength (x-y plane) ASTM D638, test speed 10mm/min 35 ± 5 MPa
Elongation at break (x-y plane) ASTM D638, test speed 10mm/min 25 ± 5%
Heat deflection temperature @ 0.46 MPa* ASTM D648 61 °C (142 °F)
Heat deflection temperature @ 1.82 MPa* ASTM D648 52 °C (126 °F)

* From supplier data sheet