Polyamides (PA) are among the most important polymers worldwide and are the most widely used technical thermoplastics. The broad range of properties characterising this group of products means they can be modified like no other using numerous fillers and reinforcement materials (e.g.: fibre-optics, glass beads, mineral, fire proofing etc.) in order to meet the high requirements of numerous sectors of industry. Their outstanding strength, durability and the possibility of a flame retardent system free of red phosphorous and halogens, polyamides, particularly polyamide 6 and polyamide 6.6, are used in the automotive industry and electrical engineering. These partially crystalline materials are also characterised by the required chemical stability vis-à-vis organic solvents and mineral lubricants.