GORE™ DRP® Diffuse Reflectors can improve luminance by over 30%. Of the diffuse materials, GORE™ DRP® Diffuse Reflectors are the highest reflectance material in the world. GORE™ DRP® Diffuse Reflectors are so reflective because of their microporous structure, where light refracts from fibril to fibril. The microporous structure, optimized for maximum reflectance, is made from a durable, non-yellowing polymer called PTFE.