www.pruett-schaffer.com

PRODUCT NUMBER	PRODUCT NAME
27-2	RED OXIDE FIRE RETARDANT WATER BASED PRIMER

GENERAL DESCRIPTION Pruett-Schaffer’s #27-2 Red Oxide Primer is a fast air-drying, water based shop primer. It is formulated from a very dense polyvinylidene copolymer, which imparts flame-retardant properties and increases the dielectric strength and breakdown voltage of the coating. This coating has very good adhesion to a variety of substrates, and is suitable for both interior and exterior use. It exhibits excellent abrasion resistance, acid, caustic, salt, chemical, and solvent resistance. RECOMMENDED USES This product is recommended for use as a low gloss, spray-applied, corrosion- resistant primer coating for metal. May be used in extremely corrosive environments. It will act as a universal primer and may be overcoated with alkyds, vinyls, epoxies, and urethanes, in either solvent- or water-based formulations. This coatings' flame retardant properties result from heat induced release of water and fire extinguishing chlorine compounds, which limits the spread of the flame with much reduced smoke development. This coating is not recommended for water immersion service or for areas subject to constant temperatures in excess of 180 ^0F. SURFACE PREPARATION For best results, 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 however, and chemical cleaning, water blasting, or even hand or power tool cleaning may be sufficient, depending on the level of service required. 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. THINNING Under normal conditions, no thinning is necessary or desirable. Thin if necessary for proper spraying with water. Add thinner a little at a time with constant gentle agitation to a maximum of 5% by volume. APPLICATION EQUIPMENT This paint may be applied by brush, roller or spray equipment, but air-assisted or airless spray is the preferred method. Brushes should be of polyester or nylon construction. Use roller covers with ^3/8- to ^1/4-inch nap. Spray equipment should be stainless steel. Use spray tips of 0.015-0.020 inch. DRYING TIME Dries to recoat in 15-20 minutes at 77 ^0F and 50% Relative Humidity. Allow to dry for 1 hour if recoating with 2-component paints containing active solvents such as ketones. High humidity will prolong the dry time more so than low temperatures. To speed the dry time, good air movement over the work and local exhaust is recommended. Forced warm air-drying will reduce the dry time in cold shops, but heat lamps are not recommended as they cause accelerated surface drying and trap solvent within the paint film. CLEANUP Clean equipment with warm soap and	water before the film dries. Run ethyl alcohol through spray guns after cleaning to prevent corrosion of steel parts. ENVIRONMENTAL This product meets current air pollution regulations regarding hydrocarbon and ozone reactive emissions, and is VOC compliant for the railcar and architectural maintenance industries. It contains no chromate and complies with current federal regulations regarding the use of lead in paint. PHYSICAL PARAMETERS VOC, U.S. EPA Reference Method 24: 0.31 lb/gal COATING DENSITY, ASTM D-1475: 12.14 lb/gal NONVOLATILE: By weight: 67.0 +/- 2.0 % By volume: 51.3 +/- 1.0% THEORETICAL COVERAGE: 823 ft^2/gallon/mil, dry film GLOSS, 60^0, ASTM D-523: 1-5 VISCOSITY, ASTM D-562: 75-85 KU ANTISAG INDEX, ASTM D-4400: >8 mils IMPACT, ASTM D-2794, in-lb: Direct: >12 Reverse: >12 FLASH POINT, PMCC: >141 ^0F TEST DATA FLAME SPREAD FACTOR, Fs, ASTM E-162-94: 1.00 FLAME SPREAD INDEX, Is: 1 (Average) SHORT TIME DIELECTRIC STRENGTH, ASTM D-149-93a: 698 volts/mil (minimum) BREAKDOWN VOLTAGE, ASTM D-149-93a: 4800 (minimum)
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 04-28-2000