High-temp structural
PPA-CF20 3D Printing
Carbon-fiber PPA, the strongest thing we print; 160°C service.
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A palm-sized bracket in PPA-CF20 runs about $21.91 plus shipping.
Your files stay private. You keep 100% of your IP.Stiffness10/10
Heat resistance9/10
Chemical resistance7/10
Tensile strength168 MPa1
Flexural modulus9.86 GPa2
Heat deflection (HDT)227 °C3
Impact (unnotched)41.7 kJ/m²4
1 ISO 527, X-Y orientation, 23 °C.
2 ISO 178, X-Y orientation, 23 °C.
3 ISO 75, 0.45 MPa.
4 ISO 179-1/1eU, unnotched, X-Y orientation, 23 °C.
A carbon fiber reinforced semi aromatic polyamide, and one of the stiffest and strongest engineering plastics available. It stays rigid past 220°C and resists fuels, oils, and automotive fluids. It absorbs some moisture that modestly lowers its stiffness, and strong acids attack it.
PPA-CF20 printed-part datasheet
Mechanical
| Tensile strength (X-Y) | 168 ± 4 MPaISO 527 |
| Tensile strength (Z) | 57 ± 5 MPaISO 527 |
| Young’s modulus (X-Y) | 11,800 ± 670 MPaISO 527 |
| Young’s modulus (Z) | 4,300 ± 340 MPaISO 527 |
| Bending strength (X-Y) | 208 ± 6 MPaISO 178 |
| Bending strength (Z) | 63 ± 4 MPaISO 178 |
| Bending modulus (X-Y) | 9,860 ± 480 MPaISO 178 |
| Bending modulus (Z) | 3,240 ± 360 MPaISO 178 |
| Elongation at break (X-Y) | 3.2 ± 0.4%ISO 527 |
| Elongation at break (Z) | 0.9 ± 0.2%ISO 527 |
| Charpy impact, unnotched (X-Y) | 41.7 ± 2.8 kJ/m²ISO 179 |
| Charpy impact, notched (X-Y) | 6.5 ± 2.3 kJ/m²ISO 179 |
| Charpy impact (Z) | 4.3 ± 0.4 kJ/m²ISO 179 |
Thermal
| HDT @ 0.45 MPa | 227 °CISO 75 |
| HDT @ 1.8 MPa | 196 °CISO 75 |
| Melting temperature (Tm) | 258 °CDSC |
| Glass transition (Tg) | 85 °CDSC |
| Vicat softening | 232 °CISO 306 |
Physical
| Density | 1.25 g/cm³ISO 1183 |
| Saturated water absorption | 1.30% (25 °C, 55% RH) |
Environment
| Chemical resistance | Better than general nylon — resists weak acids/alkalis, most organic solvents, oils and greases. Not strong acids/alkalis. |
Manufacturer printed-specimen values. Not certified design allowables.