Background information on Nylon/Polyamide

Nylons are known for absorbing hydroscopic moisture from their surroundings. The absorption will occur until an equilibrium is achieved, which has a negative impact on dimensional stability.

During moisture absorption strength and stiffness below the glass transition temperature decreases, and the impact resistance and flexibility tends to increase.

In general, Nylons provide good resistance to most chemicals, however they can be attacked by powerful acids, alkalis and alcohol.

Nylons have many varients (Nylon 6, 66, 6/6-6, 6/10, 6/12, 11 and 12 being just a few). Nylon is available as a homopolymer, copolymer or reinforced. It can also be pre-conditioned to reduce moisture absorption during its lifetime. 

The two most common grades of Nylon are Nylon 6 and Nylon 66. The number relates to the number of methyl groups which are located on each side of the nitrogen atoms (amide groups), the difference in which subtly influences the properties of the nylon. The term polyamide, reflects the presence of these amide groups on the polymer chain.  

Nylon Technical Properties

Nylon Mechanical Properties

Nylon Thermal Properties

Nylon Electrical Properties

Other Nylon Properties

Nylon Stock Sizes in the UK

Standard stock sizes/colours for Nylon bar and plate in the UK. Please note we do not supply stock material, the information provided is purely for design and research purposes.