Polystyrene with a narrow molecular weight distribution is widely used in the production of high-quality plastic products due to its consistent and predictable properties. It is particularly valued in the manufacturing of optical components, such as lenses and light guides, where clarity and precision are essential.

In the electronics industry, this type of polystyrene is utilized for creating insulating materials and components for devices, thanks to its excellent dielectric properties. It is also employed in the development of specialized films and coatings that require uniform thickness and performance.

Additionally, its narrow molecular weight distribution makes it suitable for research and analytical applications, such as calibration standards in gel permeation chromatography (GPC), ensuring accurate molecular weight measurements.

In the medical field, it is used to produce disposable labware and diagnostic equipment, where consistency and reliability are critical. Its ability to form smooth, defect-free surfaces also makes it ideal for applications in microfabrication and nanotechnology.