Polyamide 66 (PA 66) is a semicrystalline polymer appreciated for its superior mechanical and thermal properties compared to other polyamides.

• Excellent mechanical strength: higher tensile and impact strength compared to PA 6.
• Good thermal resistance: maintains mechanical properties at higher temperatures.
• High hygroscopicity: absorbs more moisture compared to PA 12 and PA 11, which can affect mechanical properties.
• Dimensional stability: good dimensional stability under mechanical and thermal loads.

Technical Properties

• Density: Approximately 1.14 g/cm³
• Melting Temperature: 255-260°C
• Tensile Strength: 85-95 MPa
• Elongation at Break: 20-50%