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PRUETT-SCHAFFER

www.pruett-schaffer.com

PRODUCT NUMBER	PRODUCT NAME
67-4	BLACK URETHANE ENAMEL
GENERAL DESCRIPTION Pruett-Schaffer’s #67-4 Black Enamel is a fast air drying, solvent based, urethane modified alkyd paint. It is designed as a high gloss; brush or spray applied finish coat for a variety of exterior or interior maintenance applications. It exhibits good abrasion and corrosion resistance, color fastness, and exterior durability. RECOMMENDED USES This product is recommended for general maintenance use on fabricated steel, masonry and concrete floors, and wood wherever a good quality alkyd finish is needed. It will provide long term, cost-effective protection against water, salt, oil, alkali cleaners, and household chemicals. Use where the ambient temperature will not exceed 300 ⁰F. Not recommended for immersion service or for areas subject to prolonged chemical solvent exposure. SURFACE PREPARATION This product may be used direct-to-metal as supplied. For best results, metal substrates should be blasted to SSPC-SP-6 commercial blast, with a 1-mil blast profile, and primed with a good quality alkyd primer (such as Pruett-Schaffer #30-12620). Unpainted concrete surfaces should be primed with this material thinned 5-10% with xylol, then recoated within 24 hours with full strength material. All previously painted concrete surfaces should be scraped or sanded to remove all loose coating and to scuff up the surface to provide better adhesion, then washed and allowed to dry completely. Bare wood surfaces should be primed or coated twice with this paint. Existing coatings must be tightly adhering and deglossed by sanding for best adhesion. In general, this coating		is very tolerant of less than perfect surface preparation, so hand or power tool cleaning may be sufficient for many applications. At a minimum for acceptable performance, surfaces to be coated must be clean and dry, and free of oil/grease, loose rust/paint, weld spatter, burning slag, dust, and chalk. Feather all rough or sharp edges. THINNING Under normal conditions no thinning is necessary. Thin with xylol or mineral spirits when using as a primer coat over bare concrete; add a little thinner at a time with constant gentle agitation to a maximum of 10% by volume. If applying to substrates exceeding 90 ⁰F, use Aromatic 100 thinner. APPLICATION May be applied by brush, roller, or conventional airless or air-assisted spray equipment. Brushes should be of polyester or nylon construction. Rollers should have a nap thickness of ¹/₄ to ³/₈ inch. Use a .015-. 020-inch spray tip size. Apply to 3-4 mils dry film thickness (6-8 mils wet) when no primer is used; or 2-3 mils dry film (4-6 mils wet) over primer. DRYING TIME Dries tack free in 15-30 minutes at 77 ⁰F; dry to light handling in 1-2 hours; ultimate cure in 3-5 days. If re coating this material with itself, use within 24 hours or reduced intercoat adhesion may occur. Force drying ovens may be used, allow 30 minutes minimum for flashoff of solvent before heating. CLEANUP Clean equipment with mineral spirits, xylol or toluol before the film dries.	ENVIRONMENTAL This product meets current air pollution regulations regarding hydrocarbon and ozone reactive emissions. It is VOC compliant for the architectural maintenance industry, and contains no lead, chromate, or zinc. PHYSICAL PARAMETERS VOC, ASTM D-3960: n3.28 lb./gal WEIGHT PER GALLON, ASTM D-1475: 8.41 lbs. NONVOLATILE: By weight: 61.0 +/- 2.0 % By volume: 50.5 +/- 1.0% THEORETICAL COVERAGE: 809 ft²/gallon/mil, dry film INITIAL GLOSS, 60⁰ , ASTM D-523: 75-80 VISCOSITY, ASTM D562: 60-68 Krebs Units FLASH POINT, TAG CC: > 25 ⁰F, as shipped TEST DATA IMPACT, ASTM D-2794: Direct: > 60 in-lbs. Reverse: > 60 in-lbs. ANTISAG INDEX, ASTM D-4400: 10 mils
THIS INFORMATION RESULTS FROM TESTS CONDUCTED IN A LABORATORY UNDER LABORATORY CONDITIONS. DIFFERENT RESULTS MAY BE OBTAINED IN COMMERCIAL USE OF THIS PRODUCT UNDER FACTORY OR FIELD CONDITIONS. PRUETT-SCHAFFER MAKES NO WARRANTY CONCERNING THE SUITABILITY OF THIS PRODUCT FOR THE END USE CONTEMPLATED BY THE BUYER, EXCEPT THAT THE PRODUCT SHALL BE IN COMPLIANCE WITH THE TECHNICAL SPECIFICATIONS PRESENTED HEREIN.

QC IDENTIFIER: E26 PRUETT-SCHAFFER, 3327 STAFFORD STREET, PITTSBURGH, PA 15204

REVISED 3-21-2000 PHONE: (412) 771-2000 FAX: (412) 771-2205