Engineering thermoplastic resins for coil forms and encapsulation

Demand is exploding for high-performance coil forms and encapsulated coils and electronic devices. These components are essential for electronic control and safety systems in the automobiles of the 1990s, controls and power supplies for appliances, electronic lighting ballasts and the development of electric vehicles for the 21st century. In response, engineering polymer suppliers have developed a series of products capable of handling coil form requirements with UL 1446/IEC 85 electrical insulation systems (EISs) from Class B (130°C) to Class R (220°C) applications. Encapsulation polymers recognized in systems for Classes B, F and H have been developed, and a specialty polymer has been introduced for encapsulating automotive and other electrical components