Urethane is a type of material commonly used in making things like mattresses, foam, and coatings. It is a man-made substance that can be soft and flexible or hard and rigid, depending on how it is made. Full definition
With watertight handles made with urethane foam, these durable plastic totes protect your holiday decor from moisture, dirt, and insects. (bhg.com)
AMANDA ROSS - HO Untitled Sculpture (ONCE U GO BLACK) 2015 High density foam with urethane coating, latex paint, knit jersey, thread, wood, steel, and formica 37.5 by 75.5 by 48 in. (miandn.com)
Composed of urethane resin and colored pigment, the works contain percolating bubbles and a flowing alchemy, a painterly quality complimented by a palette that is alternately seductive and repulsive. (artspace.com)