Polyamide 4/6 - Nylon 4/6 - PA 4/6

Polymer Type



Higher heat distortion temperature than Nylon 6 or Nylon 6/6.  Higher cyrstallinity than Nylon 6 or Nylon 6/6, leading to better chemical resistance, particularly to acidic salts.  Short cycle times.


Similar moisture absorption to Nylon 6/6, but dimensional increase is less.  High processing temperature.


General mechanical parts as for Nylon 6 and Nylon 6/6, but where better thermal stability is required.  In fibre form, for rubber reinforcement.

Typical Properties

Property Value
Density (g/cm3) 1.18
Surface Hardness SD85
Tensile Strength (MPa) 100
Flexural Modulus (GPa) 1
Notched Izod (kJ/m) 0.1
Linear Expansion (/°C x 10-5) 7.4
Elongation at Break (%) 30
Strain at Yield (%) 11
Max. Operating Temp. (°C) 100
Water Absorption (%) 2.3
Oxygen Index (%) 22
Flammability UL94 V2
Volume Resistivity (log ohm.cm) 15
Dielectric Strength (MV/m) 20
Dissipation Factor 1 kHz 0.35
Dielectric Constant 1 kHz 11.0
HDT @ 0.45 MPa (°C) 220
HDT @ 1.80 MPa (°C) 160
Material. Drying hrs @ (°C) 3 @ 95
Melting Temp. Range (°C) 290 - 300
Mould Shrinkage (%) 1.8
Mould Temp. Range (°C) 40 - 80

Source : Abstracted from Plascams

For more information on Plascams please visit RAPRA Technology Ltd.



  1. Arnaldo Rizzo Arnaldo Rizzo Italy says:

    Yes, I would to know if polyamide 6 or 6,6 sutures are completely resorbed after many years in vivo by hydrolysis.

The opinions expressed here are the views of the writer and do not necessarily reflect the views and opinions of AZoM.com.

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