For many years, the popularity of hot melt adhesives based on polyolefin (PO) has increasingly grown. Since the introduction of these thermoplastic hot melt adhesives in the late 1980s, they have become a true success story. It started with the demand for a superior heat resistance compared to the then-established EVA (ethylene vinyl acetate) hot melts and now polyolefin hot melts offer a variety of substantial advantages.