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PRODUCT NUMBER	PRODUCT NAME
20-13674	YELLOW (Buff) ACRYLIC WATER BASED PRIMER

GENERAL DESCRIPTION Pruett-Schaffer’s #20-13674 Yellow Primer is a VOC compliant, water based acrylic emulsion primer paint. It is designed as a low gloss, spray applied, fast-drying, metal primer. The cured film exhibits very good flexibility, salt, and chemical resistance. This coating allows high film build without sags, and the desired dry film thickness can be applied in one economical coat. RECOMMENDED USES This product is recommended for railcar and general equipment maintenance. It exhibits exceptional adhesion to a wide variety of substrates including minimally prepared cold rolled steel, galvanized steel, existing coatings, masonry, and even aluminum without pretreatment. Use under Pruett-Schaffer 24 and 25 series finish coats. Not recommended for immersion service or for areas subject to continual solvent splash. SURFACE PREPARATION For severe service, metal substrates should be blasted to SSPC-SP-6 minimum, with a 1-mil blast profile. This coating is very forgiving of less than perfect surface preparation, so hand tool cleaning may be sufficient for some uses. At a minimum for acceptable performance, surfaces to be coated must be clean, dry and free of oil/grease, loose rust/paint, weld spatter, burning slag, dust, and chalk. Feather all rough or sharp edges. Alkyd type paints should be deglossed before	being recoated. Chalky or dusty surfaces should be power washed and allowed to dry completely. THINNING Under normal conditions, no thinning is necessary or desirable. Thin if necessary with water only, do not use organic solvents or oils. Add water a little at a time with constant gentle agitation to a maximum of 5% by volume. APPLICATION EQUIPMENT May be applied by brush, roller, or airless spray. Airless spray gives the best results, use spray tips with 0.015-.020 inch orifice. Use roller covers with ^3/8 to ^1/4 inch nap. Brushes should be of polyester or nylon construction. Do not apply with a cup type spray gun. Apply to 2-3 mils dry film build, equal to 5-7 mils wet film. DRYING TIME Dries to recoat in 1 to 1.5 hours at 77 ^0F and 50% Relative Humidity. High humidity will prolong dry time more so than low temperatures. To speed the dry time, good air movement over the work and local exhaust is recommended. Heat lamps are not suitable, as they tend to trap solvent within the paint film causing water sensitivity. CLEANUP Clean equipment with warm soap and water before the film dries.	ENVIRONMENTAL This product meets current air pollution regulations regarding hydrocarbon and ozone reactive emissions. It contains no lead, chromate, or zinc. PHYSICAL PARAMETERS VOC, ASTM D-3960: 0.51 lb/gal WEIGHT PER GALLON, ASTM D-1475: 10.98 lbs NONVOLATILE: By weight: 54.08 +/- 2.0 % By volume: 39.3 +/- 1.0% THEORETICAL COVERAGE: 630 ft^2/gallon/mil, dry film INITIAL GLOSS, 60^0, ASTM D-523: 5-10 VISCOSITY, ASTM D-562: 85-90 Krebs Units FLASH POINT, PENSKY-MARTINS CC: 152 ^0F TEST DATA SALT SPRAY EXPOSURE, ASTM B-117 and D-1654, 5% SOLUTION: 160 hrs rust creepage from scribe: < 1 mm IMPACT, ASTM D-2794: Direct: > 120 in-lbs Reverse: > 120 in-lbs ELONGATION, ASTM D-522: 1/4 in conical mandrel: no cracking or flaking ANTI-SAG INDEX, ASTM D-4400: >13 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.

REVISED 8-8-2001