Rexolite is a unique cross-linked polystyrene, microwave plastic manufactured by C-Lec Plastics Inc. This material’s most notable properties are it’s stable electrical properties into the Giga-hertz frequency range. It is also optically clear, with a slight yellow cast, when polished (approximately the same as Acrylic), dimensionally stable, and has excellent sound transmission characteristics.

As a result, Rexolite is often used for high-frequency circuit substrates, microwave components, and lenses with acoustic, optical and radio-frequency applications.