Polyamide / PA

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Polyamide / PA

Using high quality recycled polyamides (PA6, PA66) is not only very economical, but also an environmentally friendly solution. This environmental aspect is recently accented by many companies especially in the automotive, domestic appliance, electrical & lighting or furniture industry sectors. 

Polyamide resins are hydroscopic but the water absorption is a reversible process. They absorb water from direct immersion and from humid air. The amount of water absorbed normally depends on the exposure time, the air temperature and the relative humidity; the maximum moisture level absorbed is normally 3.5% (saturated in air at 23°C, 50% R.H.)

At the temperatures used to mould PA, moisture levels can cause visual flaws and the brittleness of the moulded part.