Best for
- Repeated-autoclave medical trays and instrument housings. We do not certify parts for this use.
- Aircraft interior parts needing both heat and impact resistance. We do not certify parts for this use.
- Plug-in connectors and powertrain parts in contact with engine oil
Not the right choice for
- Contact with ketones such as acetone and MEK, concentrated strong acids or aircraft hydraulic fluid
- Loaded parts above about 160 C
Key properties
| Tensile strength | 55 MPa |
|---|---|
| Heat deflection | 190 C at 0.45 MPa |
| Glass transition | about 220 to 230 C |
| Flammability | UL94 V-0 at 1.5 mm |
What to use instead
- PSU (Polysulfone) when the part does not take real impact and a lower heat limit will do.
- PEI (Ultem) when flame rating and aerospace-style qualification matter more than sterilization. We do not certify parts for this use.
- PES (Polyethersulfone) when you need more stiffness and the part will not take impact.
The FDM material selector narrows the whole range by operating temperature, load, chemical exposure, and budget.