Encapsulation, for the purpose of IPC 7621, is defined as a low pressure molded thermoplastic, e.g., polyamide, which is brought to a liquid state and injection molded and (rather quickly) returned to a temperature below its melting point, forming a durable yet pliable (rubbery-like) form. The desired performance characteristics of LPM encapsulation depend on the application and must be considered when selecting material. Users are urged to consult material suppliers for detailed technical data. This guide will aid the user in understanding the capabilities and limits of LPM using thermoplastics.