Check for excessive moisture in the resin and for resin degradation, possible melt fracture, or inadequate venting.

Pyrolysis, discarded printed circuit boards in the degradation of organic resin into small molecules of petroleum products, and at the same time inorganic inert component of the separation.

Chemists have developed a new range of fully biodegradable, non-toxic resins made from raw materials that are readily and cheaply available.