Polyamides for Extrusion

Ultramid^® B (homopolyamide PA6) grades 

Ultramid^® slow crystallisation grades

Ultramid^® C (copolyamide PA6/66) grades

Example

B40 LN (PA6, high viscosity, lubricated, nucleated)

Supply form and storage

Ultramid^® is supplied as pre-dried pellets ready for processing in a variety of moisture-proof containers such as bags, octabins, big bags and loose bulk.

To ensure that the perfectly dry material delivered cannot absorb moisture from the air, the containers must be stored in dry rooms and always carefully resealed after any material is removed. Containers stored in cold rooms should be allowed to equilibrate to normal temperature before opening so that no condensation occurs on the pellets. 

Safety precautions during processing

Like all thermoplastic polymers, Ultramid® also decomposes when exposed to excessive heat, such as overheating or cleaning by burning off, forming gaseous decomposition products. As well as caprolactam (with Ultramid® B (PA 6) and C (PA 6/66)), ammonia and carbon monoxide are formed above approximately 310°C. Above approximately 350°C, small quantities of pungent-smelling vapors of aldehydes, amines and other nitrogenous decomposition products are also formed.
In general, measures should be taken to provide ventilation and venting of the workplace, preferably by means of an extraction hood over the cylinder unit.

Food regulations

Information regarding the food approval status of Ultramid® and other plastics is available under menu item Sustainability – Product safety and environment.