Polyurethane vs. Varnish

Polyurethanenoun

(organic chemistry) Any of various polymeric resins containing urethane links; used in very many industrial and domestic applications.

Polyurethanenoun

any polymer containing [-NH.CO.O-] linkages; such polymers are much used as the basis of light but rigid foams for packaging (polyurethane foam) and for hard coatings, as on floors.

Polyurethanenoun

any of various polymers containing the urethane radical; a wide variety of synthetic forms are made and used as adhesives or plastics or paints or rubber

Polyurethanenoun

a synthetic resin in which the polymer units are linked by urethane groups, used chiefly as constituents of paints, varnishes, adhesives, and foams

Polyurethaneverb

coat with polyurethane paint or varnish

Polyurethane

Polyurethane (often abbreviated PUR and PU) is a polymer composed of organic units joined by carbamate (urethane) links. In contrast to other common polymers such as polyethylene and polystyrene, polyurethane is produced from a wide range of starting materials (monomers) and is therefore a class of polymers, rather than a distinct compound.

Varnishnoun

A type of paint with a solvent that evaporates to leave a hard, transparent, glossy film.

Varnishnoun

Anything resembling such a paint; glossy appearance.

Varnishnoun

(by extension) A deceptively showy appearance.

Varnishnoun

a passenger train, probably derived from the varnished passenger cars used at one time.

Varnishverb

(intransitive) To apply varnish.

Varnishverb

(transitive) To cover up with varnish.

Varnishverb

(transitive) To gloss over a defect.

Varnishnoun

A viscid liquid, consisting of a solution of resinous matter in an oil or a volatile liquid, laid on work with a brush, or otherwise. When applied the varnish soon dries, either by evaporation or chemical action, and the resinous part forms thus a smooth, hard surface, with a beautiful gloss, capable of resisting, to a greater or less degree, the influences of air and moisture.

Varnishnoun

That which resembles varnish, either naturally or artificially; a glossy appearance.

Varnishnoun

An artificial covering to give a fair appearance to any act or conduct; outside show; gloss.

Varnishverb

To lay varnish on; to cover with a liquid which produces, when dry, a hard, glossy surface; as, to varnish a table; to varnish a painting.

Varnishverb

To cover or conceal with something that gives a fair appearance; to give a fair coloring to by words; to gloss over; to palliate; as, to varnish guilt.

Varnishnoun

paint that provides a hard glossy transparent coating

Varnishverb

cover with varnish

Varnishnoun

resin dissolved in a liquid for applying on wood, metal, or other materials to form a hard, clear, shiny surface when dry

Varnishnoun

short for nail varnish

Varnishnoun

an external or superficially attractive appearance of a specific quality

Varnishverb

apply varnish to

Varnishverb

disguise or gloss over (a fact)

Varnish

Varnish is a clear transparent hard protective coating or film. It is not a stain.