PRODUCT NUMBER	PRODUCT NAME
24-68-2	BLACK SEMI-GLOSS WATERBASED PAINT

GENERAL DESCRIPTION Pruett-Schaffer’s #24-68-2 Black Paint is an air-drying, water based acrylic emulsion paint. It is designed as a semi- gloss, spray applied, direct-to-metal finish coat. The cured film exhibits very good salt and chemical resistance. This coating allows high film build without sags, and the desired dry film thickness can be applied in one 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, and even aluminum without pretreatment. Use where high film build in one coat is required and gloss is not a factor. Not recommended for immersion service or for areas subject to continual solvent splash. SURFACE PREPARATION Apply direct-to-metal. For DTM service, substrates should be blasted to SSPC-SP-6 minimum, with a 1-mil blast profile. Feather all rough or sharp edges. This coating is very tolerant of less than perfect surface preparation, so hand tool cleaning may be sufficient for some uses. At a minimum for acceptable performance, all surfaces to be coated must be clean, dry and free of oil/grease, loose rust/paint, weld spatter, burning slag, dust, and chalk. 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, 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 Best application is by airless or pressure pot spray. Can be applied with brush or roller. 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 unless pressurized. Apply at 2.5 to 7 mils wet film to obtain .7-2 mils dry film over bare metal. DRYING TIME Dries tack free in 30 min to 1.5 hours (depending on wet film thickness) 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 or chromate .	PHYSICAL PARAMETERS VOC, U.S. EPA Reference Method 24: 0.55 lb/gal COATING DENSITY, ASTM D-1475: 8.75 lb/gal NONVOLATILE: By weight: 30.9 +/- 2.0 % By volume: 27.3 +/- 1.0% THEORETICAL COVERAGE: 438 ft^2/gallon/mil, dry film INITIAL GLOSS, 60^0, ASTM D-523: 20-50 VISCOSITY, ASTM D-562: 70-75 Krebs Units FLASH POINT, PENSKY-MARTINS CC: > 141 ^0F TEST DATA SALT SPRAY EXPOSURE, ASTM B-117 and D-1654, 5% SOLUTION: 100 hrs, rust creepage from scribe: < 1 mm, no blisters HUMIDITY RESISTANCE, ASTM D-2247: 100 hrs: rust creepage from scribe: < 1mm, no blisters ACCELERATED WEATHERING, ASTM G-53 WITH UV-B BULB, 4 HRS UV THEN 4 HRS CONDENSING HUMIDITY FOR 336 HRS: Chalking: none Flaking: none Checking: none Blistering: none Cracking: none IMPACT, ASTM D-2794: Direct: > 100 in-lb Reverse: > 100 in-lb
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 03-04-2000