Precautions for use
Propriétés des thermoplastiques

The properties are measured on test specimens whose processing is standardized and, in reality, the values can be significantly different for many reasons, for example :

• presence of additives of any kind: nucleophilic colorants, functional plasticizers, carbon fibers or black, release agents, antistatic agents, regrind;

• processing conditions leading to variations in crystallinity, orientation of macromolecules and reinforcements, physical defects such as weld lines... ;

• finishing: surface treatment, painting, assembly...

Part geometry can create notch effects or stress concentrations.

Test temperatures are 20 C or 23 C, which is not necessarily the operating temperature. For some materials, a small difference in...