PEI (polyetherimide) is a high-temperature-resistant amorphous plastic with a natural amber-colored, transparent appearance. The material meets the highest requirements for temperature resistance (continuous operating temperatures starting at 170°C, depending on the application and type) and, due to its chemical composition, is inherently flame-retardant without the need for additional flame-retardant additives, while also producing very little smoke. It possesses very high strength, which can be further enhanced by the addition of glass fibers or carbon fibers. Its above-average dimensional stability and low tendency to creep round out the broad range of properties offered by polyetherimide. All these properties make the material an ideal candidate for the automotive and aerospace industries. This thermoplastic is also widely used in the telecommunications sector and in medical technology.

PPS (polyphenylene sulfide) is a high-temperature-resistant, self-extinguishing, and semi-crystalline high-performance plastic with outstanding chemical properties. In addition to low water absorption, PPS also offers good dimensional stability, stiffness, and strength. The material is available in three different grades: linear, cross-linked, and impact-modified. Depending on requirements, PPS can be reinforced with glass fiber, carbon fiber, mineral fillers, or a combination thereof. Linear PPS has higher toughness and elongation at break than cross-linked PPS. The material’s temperature resistance of up to 240°C—depending on the modification and application—allows it to be used in engine-related applications in the automotive and electrical industries. These include, among others, ignition systems, connector assemblies, and valves. Parts for medical technology and household goods—not least due to PPS’s excellent adhesion to silicone—are also among the prime applications for PPS.

TPI (thermoplastic polyimide) is a thermoplastic with high heat resistance that, when modified, can be processed using conventional injection molding. The material combines excellent melt stability with very good chemical and mechanical properties. Furthermore, TPI exhibits dimensional stability even at extremely high temperatures. Due to its chemical structure, the plastic is characterized by its flame-retardant properties without the addition of flame retardants. Thanks to its high-quality properties, TPI is used in the aerospace and automotive industries. The material is also a suitable candidate when it comes to metal replacement.

PEEK (polyetheretherketone) is a high-temperature-resistant thermoplastic. PEEK is resistant to almost all organic and inorganic chemicals and, up to approximately 280 °C, is also resistant to hydrolysis. The material is used in the medical, aerospace, electrical, and food industries.