A coating applied to face material to increase opacity. A coating applied to prevent migration of ink, adhesive, or other substances through the face material. A sealing coat.

A coating applied to the face material on the side opposite the printed surface to provide increased opacity to the face material and/or to prevent migration between adhesive and the face material and/or to improve anchorage of adhesive to face material.

Coating used to isolate a coating system from the surface to which it is applied or from a previous coating. Permits to increase adhesion or to insure compatibility.

A coating applied to a face material on the side opposite the printing surface that lies between the material and the adhesive coat. It provides increased opacity to the face material; prevents migration of adhesive to the face material; and/or improves anchorage of adhesive to face material.

When glazing or wood graining techniques utilizes more than one coat, a barrier coat is often applied between glaze coats. If the glazes are oil base, the barrier coat is generally a one-pound cut (a very thin mix) of dewaxed shellac. If the glazes are water base, the barrier coat is generally a thinned-down acrylic urethane. The barrier coat isolates, or "secures" the substrate color so as to prevent it from becoming "muddied" when the subsequent glaze coat is applied.

First coat of protective paint surface that acts as a mould release and also forms the moulded-in protective skin of the finished urethane product. The barrier coat also prepares the urethane foam part to accept a paint finish.

A coat or layer of finish material that acts as a barrier between two materials which may be incompatible with each other, but compatible with the barrier coat. Example: Shellac as a barrier coat will prevent bleeding of a dye stain into a lacquer finish.

A coating applied to a material to prevent migration of some substance into or through the material.

A coat applied which separates the substrate from contact with the topcoats.

A surface coating used to improve permeation resistance and protect the container from scuffing.

A coating that is applied onto the non-printing side of paper to add to the opacity of the paper.

A coating used to isolate a paint system either from the surface to which it is applied or a previous coating for the purpose of increasing adhesion or insuring compatibility.

An initial coating used to isolate subsequent coatings from the substrate or previous finishes. Sometimes referred to as a basecoat.

Coating that is applied onto the non-printing side of paper to add to the opacity of that paper. See also opacity.