Castform PS


Castform PS

Styrene-based, expendable pattern casting material, compatible with most standard foundry processes.
For prototype metal castings and low to medium production runs without tooling. Applications include:

  • Prototype metal castings
  • Low to medium production runs without tooling
  • Plaster castings
  • Titanium castings

Mechanical Properties Test Method Metric
Tensile Strength, Ultimate ASTM D638 2.84 MPa
Tensile Modulus ASTM D638 5.3 MPa
Impact Strength (notched Izod) ASTM 256 <11 J/m
Impact Strength (unnotched Izod) ASTM 256 14 J/m
Thermal Properties Test Method Metric
Glass Transition (Tg) - Polystyrene ASTM D3418 89°C
Melting Point (Mp) - Wax >63°C
Flash Point (Cleveland Open Cup) Polystyrene Wax 350°C
>200°C
Autoignition Point Polystyrene 410°C