Polystyrene diffuser sheet is lightweight, versatile, easy to work with and diffuser polystyrene plastic sheets can be custom thermoformed into complex shapes, making it ideal for lighting applications. For any type of backlighting application, you need PS diffuser transparent polystyrene sheets to help prevent hot spots and brightness fluctuations, so there is a wide range of applications for PS diffuser sheet in both public transport and aerospace. Our polystyrene diffuser sheet products with the largest range of options in terms of beam angle, haze, clarity and colour performance to provide the highest levels of efficiency.