Urethane moulding resists warping, cracking and decay while maintaining the classic appearance of wood millwork. Urethane is also perfect for use in applications that require faux-finishing. Flat trim moulding becomes a versatile addition to windows, doors, walls, and more. Flat trim moulding is precision molded, lightweight and easy to work with. It is non-porous and highly resistant to the effects of moisture, which results in high performance in exterior applications and low maintenance over time. It will not warp, splinter, mildew, decay or offer a food source to insects like termites. Urethane mouldings are pre-primed.