NR 422.02(63)(63) “Penetrating prime coat” means an application of low-viscosity liquid asphalt to an absorbent surface to prepare it for an asphalt surface. NR 422.02(63m)(63m) “Perimeter bonded sheet vinyl floor covering installation” means the installation of sheet flooring with vinyl backing onto a nonporous substrate using an adhesive designed to be applied only to a strip of up to 4 inches wide around the perimeter of the sheet flooring. NR 422.02(64)(64) “Pigmented coating” means an opaque coating which contains binders and colored pigments and which is formulated to hide a surface, either as an undercoat or topcoat. NR 422.02(64g)(64g) “Plastic” means a synthetic material chemically formed by the polymerization of carbon-based substances that is usually compounded with modifiers, extenders, or reinforcers and is capable of being molded, extruded, cast into various shapes and films, or drawn into filaments. NR 422.02(64m)(64m) “Plastic part” means a piece made from a substance that has been formed from resin through application of pressure or heat or both. NR 422.02(64q)(64q) “Plastic solvent welding adhesive” means an adhesive intended by the manufacturer for use to dissolve the surface of plastic to form a bond between mating surfaces. NR 422.02(64u)(64u) “Plastic solvent welding adhesive primer” means a primer intended by the manufacturer for use to prepare plastic substrates prior to bonding or welding. NR 422.02(65)(65) “Plastisol” means a composition of finely divided resin and plasticizer used to coat flexible substances such as paper or fabrics which is applied as a thick gel which solidifies when heated. NR 422.02(65e)(65e) “Pleasure craft” is a vessel that is manufactured or operated primarily for recreational purposes, or leased, rented, or chartered to a person or business for recreational purposes. NR 422.02(65m)(65m) “Pleasure craft coating” means a marine coating, except unsaturated polyester resin or fiberglass coatings, applied by brush, spray, roller, or other means to a pleasure craft. NR 422.02(65s)(a)(a) “Porous material” means a substance that has tiny openings, often microscopic, in which fluids may be absorbed or discharged, including paper and corrugated paperboard. NR 422.02(66)(66) “Precoat” means any coating which is applied to bare metal primarily to deactivate the metal surface for corrosion resistance to a subsequent water-base prime coat. NR 422.02(66m)(66m) “Prefabricated architectural component coating” means a coating applied to metal parts and products that are to be used as part of an architectural structure. NR 422.02(67)(67) “Pretreatment coat” means a coating applied directly to metal substrates and which contains at least 0.50% acid, by weight, and is used to provide surface etching, corrosion resistance and enhanced adhesion of subsequent coatings. NR 422.02(67m)(67m) “Pretreatment wash primer” means a primer that is applied directly to metal substrates and which contains at least 0.50% acid by weight, as measured according to ASTM D1613-02, incorporated by reference in s. NR 484.10 (25m), and is used to provide surface etching, corrosion resistance and enhanced adhesion of subsequent coatings. NR 422.02(68)(68) “Prime coat” means a coating applied directly to a substrate or on top of a pretreatment wash primer or other coating for purposes of filling pores in the substrate, providing corrosion resistance or enhancing adhesion or blister resistance of subsequent coatings. NR 422.02(69)(69) “Prime pigments” means pigments or solids which contribute to the overall coating color. Pigments whose main function is to act as a filler or provide corrosion resistance rather than providing color are not prime pigments. NR 422.02(70)(70) “Primer sealer” means any coating, applied subsequent to the prime coat or primer surfacer, and prior to the application of a topcoat, that improves the adhesion of the topcoat, provides corrosion resistance and prevents solvents from the topcoats from penetrating into the prime coat or primer surfacer coating. NR 422.02(71)(71) “Primer surfacer” means a coating which fills in irregularities, and is intentionally thick enough to permit sanding without cutting through to bare metal. NR 422.02(72)(72) “Printed interior panels” means panels whose grain or natural surface is obscured by fillers and basecoats upon which a simulated grain or decorative pattern is printed. NR 422.02(73)(73) “Publication rotogravure printing” means rotogravure printing upon paper which is subsequently formed into books, magazines, catalogues, brochures, directories, newspaper supplements, and other types of printed materials. NR 422.02(74)(74) “Quench area” means a chamber where the hot metal exiting the oven is cooled by either a spray of water or a blast of air followed by water cooling. NR 422.02(74m)(74m) “Red coating” means a coating that meets all of the following criteria: