Polyester-based powder coatings are the most widely employed type of powder coatings nowadays. This overview covers polyester binders that employ both HAA and TGIC as curing agents. It is no coincidence that only binders for thermosetting powder coatings are mentioned here. These have many advantages over thermoplastic products. Thermoplastic powder coatings, for example, tend to exhibit rather weak adhesion to metal surfaces. Moreover, as they do not involve any active crosslinking, limitations on molecular weight also need to be taken into account. In the absence of crosslinking, the molecular weight is determined solely by the initial binder, but a high ...