• EOS Polymer Part in Powder | © EOS
    EOS Polymers for Industrial 3D Printing


PrimeCast® for 3D Printing

This transparent, foamed white, amorphous or semi-crystalline thermoplastic has high rigidity, medium hardness, and strength, but low impact resistance.

Fields of application:
3D-printed parts made from PS are used to make master models for vacuum, plaster and ceramic shell castings.

PrimeCast® 101 – Polystyrene Gray

This gray polystyrene-based material is especially suitable for investment casting thanks to its excellent dimensional accuracy and low melting point.

Typical mechanical properties

Tensile modulus 1600 MPa
Tensile strength 5.5 MPa
Elongation at break 0.4%


Thermal properties

Decomposition temperature 229 - 555°C


Physical properties

Density 770 kg/m³


Material processed by

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