| Density (g/cm³) |
1.08 |
1.13 |
1.14 |
1.07 |
1.05 |
| Water absorption (saturation, %) |
Low, approx. 1.5% |
High, approx. 2.5% |
Medium‑high, approx. 3.0% |
Very low, approx. 1.2% |
Extremely low, approx. 1.0% |
| Dimensional stability |
Excellent |
Poor |
Fair |
Excellent |
Top‑level |
| Rigidity / Strength |
Good |
Medium |
High |
Medium |
Medium‑low |
| Heat resistance (HDT) |
Medium, approx. 220℃ |
Medium, approx. 210℃ |
High, approx. 250℃ |
Medium, approx. 215℃ |
Medium, approx. 210℃ |
| Low‑temperature toughness |
Excellent(no brittleness at -60℃) |
Fair(prone to brittleness at -20℃) |
Fair(at -30℃) |
Excellent(at -70℃) |
Excellent(at -60℃) |
| Oil resistance / fuel resistance |
Excellent |
Fair |
Fair |
Excellent |
Excellent |
| Wear resistance & self‑lubrication |
Good |
Fair |
Good |
Excellent |
Excellent |
| Processability |
Good |
Easy |
Easy |
Good |
Good |
| Cost |
Medium‑high |
Low |
Medium |
High |
Very high |
| Typical positioning |
General‑purpose long‑chain PA for precision, oil resistance & low moisture absorption |
General structural parts with high cost‑performance |
High‑strength & heat‑resistant structural parts |
High‑end precision parts with low moisture absorption & long service life |
Bio‑based, ultra‑low moisture absorption & high‑end weathering resistance |