MDM Architectural Mouldings are made from the newest technology of high density polyurethane (PU), which give perfectly detailed finishing, ready for painting adn easily installed with glue and nails. The moulding itself are extemely light weight. They are the best alternative to conventional wood mouldings and the mess of plaster mouldings. Polyurethane Crown Moulding Ceiling Medallions Niches Decorative Moulding