Learn how to say Polyurethanes correctly in English with this tutorial pronunciation video.
Oxford dictionary definition of the word polyurethane:
a synthetic resin in which the polymer units are linked by urethane groups, used chiefly as constituents of paints, varnishes, adhesives, and foams:
five coats of polyurethane
polyurethanes serve a variety of uses
[with object] (usually as adjective polyurethaned)
coat with polyurethane paint or varnish:
the sanded and polyurethaned floorboards