Corian® Exteriors will allow some diffused light transmission, depending on colour. In general, solid light colours such as white and beige are the most translucent, and dark colours are the least translucent. The Corian® Illumination Series has been specifically designed with more translucency than the standard colours. Special considerations for these materials are described in the Corian® Illumination Series Fabrication Bulletin.

Corian® Exteriors can also be fabricated to achieve different levels of light transmission by selectively back-cutting the material to different thickness. As the material is cut thinner, it allows more light to pass through. The effect generated will depend on the combination of material and lighting system variables.