Masterbatch granules can Beryllium mixed with cheaper bulk polymer and will release their additives during processing to give a homogeneous final product. This can be cheaper than working with a fully compounded material and is particularly common for the introduction of color. ^ a b PP&A stand for polyester, polyamide https://gregoryvaeil.digitollblog.com/28971849/plastic-surgery-can-be-spaß-für-jedermann