For over 40 years, Lippert Corporation has manufactured cast polymer products and fixtures of uncompromising quality and dependability. Those time-honored principles are now an inherent part of Prism�, Lippert's solid surface material. Prism� blends natural minerals and advanced plastics technology into a homogeneous, non-porous material. Prism� is formed into sheets and sinks which are then bonded, shaped and custom featured. The inherent nature of the materials used in making Prism� creates a product which is easy to clean as well as being heat, scratch, impact, and stain resistant.