Plastics are conquering the earth - unfortunately not always to the earth’s advantage, as indicated by the increasing reports on plastic waste. Two studies by the Fraunhofer Institute for Structural Durability and System Reliability LBF, on the other hand, demonstrate that upcycling of PET bottles and the recycling of flame-retardant plastics are worthwhile both for economic reasons and for protecting the environment. Further details on these studies will be presented at the Compounding World Expo 2018 in Essen, from June 27 to June 28, at booth 707. Another main focus will be on new procedures in process technology, under the keyword Industry 4.0. A monitoring system that is based on intelligent sensor nodes, for example for a twin-screw extruder, ensures that networked work processes run reliably. With another patented procedure, the corrosiveness of plastic melts can be determined quickly, which also helps to prevent downtime in the future.