Hypernyms (currency is a kind of...): medium of exchange; monetary system (anything that is generally accepted as a standard of value and a measure of wealth in a particular country or region). Hyponyms (each of the following is a kind of currency):money (the official currency issued by a government or national bank). Eurocurrency (currency of the major financial and industrial countries held in those countries for the purpose of lending and borrowing).edium of exchange; monetary system (anything that is generally accepted as a standard of value and a measure of wealth in a particular country or region). Hyponyms (each of the following is a kind of currency):
Polyurethane combines the best properties of rubber and plastic, without the weaknesses inherent in plasticized vinyl films. Because it contains no plasticizers, it is not subject to the brittleness and other problems caused when they leach to the surface.
Polyurethanes sealers are nearly twice as thick as an acrylic sealer and form a high-build protective film on the concrete surface that provides excellent resistance to abrasion and chemicals. They are available in water-and solvent-based versions and a range of sheen levels.