This line of wainscoting tongue and groove moldings are part of the Wallstyl collection and are made out of a patented high density polymer system, which is humidity resistant and impact-resistant. It is an environmentally friendly, microcellular foam that is recyclable and contains no formaldehydes or PVC, according to the manufacturer. All profiles are lightweight and pre-primed. They consist of two different profiles and vary in style, finish and width.