Close this search box.

Plastic Material-PA66

Home » Service » Material Selection » Plastic Material-PA66

Introduction of PA66

Polyamide 66 (PA66), also known as nylon 66, is an engineering thermoplastic that belongs to the polyamide. It is a high-performance material known for its exceptional mechanical strength, heat resistance, and versatility. PA66 is synthesized from hexamethylenediamine and adipic acid, resulting in a linear polymer structure with repeating amide groups.


This polymer structure contributes to its remarkable properties, making it a preferred choice for applications requiring strong and durable components, such as automotive parts, electrical connectors, industrial equipment, and consumer goods. Its high heat deflection temperature, excellent chemical resistance, and resistance to impact make PA66 a reliable material in demanding engineering applications.

PA66 Information

Process: Injection Molding, Insert Molding, Overmolding, CNC Machining, 3D Printing

Colors: custom-colored


Price: High-range of plastic material costs

Application: automotive parts, textiles, engineering components consumer goods, etc.

Recommended Wall Thickness: 2mm-4mm

PA66 Properties

PA66, or Polyamide 66, is an engineering thermoplastic known for its high mechanical strength, heat resistance, and versatility. It is part of the nylon family of polymers. Here is the table about PA66 properties.



Density (g/cm³)

1.13 – 1.15

Shrinkage Rate (%)


Pockwell Hardness

R110 – R120

Tensile Strength at Yield (MPa)

60 – 80

Elongation at Break (%)


Flexural Modulus (GPa)

2.0 – 3.0

Flexural Strength (MPa)


Drying Temperature (°C)

 80 – 90

Drying Time (hrs)

2 – 4

Melt Temperature (°C)

250- 280

Mold Temperature (°C)

60 – 80

FAQ About PA66 Plastic Material

PA66 can absorb moisture from the environment, leading to changes in dimensional stability and mechanical properties. Proper drying before processing is crucial.

PA66 generally has higher tensile strength, impact resistance, and heat resistance compared to PA6. PA66 is often chosen for more demanding applications.

Related Resources