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PRODUCT NUMBER	PRODUCT NAME
66-15182-A	BLUE POLYURETHANE COATING, HIGH SOLIDS
GENERAL DESCRIPTION Pruett-Schaffer’s #66-15182 Blue Polyurethane is a two component, air drying, solvent thinned, aliphatic polyisocyanate cured acrylic modified polyester coating. It is designed as a heavy duty, high gloss topcoat for use over primed metal substrates. RECOMMENDED USES Use to protect machinery, tanks, and structures from corrosion in aggressive environments where chemicals, salt, water, fuels, and oils are present. This coating exhibits good flexibility and resistance to impact cracking, and has excellent exterior weathering resistance and gloss retention. It is not recommended for immersion service. SURFACE PREPARATION For severe service, metal substrates should be degreased and blasted to an SSPC-SP-10 white metal blast with a 1.0 +/- .5 mil blast profile, and primed with an epoxy primer, such as Pruett-Schaffer’s 10-Series Epoxy Primer (or equivalent) or an Inorganic Zinc Primer. An SP-6 commercial blast may be sufficient for many repair or DTM applications with less severe requirements. Weathered galvanized metal must be cleaned of rust and oxidation products by sweep blasting or power washing. All surfaces to be coated must be clean, dry, and free of oil and grease, weld spatter, burning slag, overspray, and dust. Sharp edges should be ground smooth.		MIXING INSTRUCTIONS Mix 4 parts by volume #66-15182-A with 1 part 66-B Hardener. Mix at slow speed to avoid entraining air into the paint, box the containers while mixing. Use at once, there is no induction time. THINNING Thin if necessary for spraying with xylol or methyl isobutyl ketone. Add a little solvent at a time to the mixed system with constant gentle agitation to a maximum of 5% by volume. APPLICATION EQUIPMENT May be applied by air assisted or airless spray. Airless spray gives the best results, use .015-.020 inch tip size. Apply at 3 mils wet film thickness to yield 1.5 mils dry film thickness. Best results are obtained from films of 1-2 dry mils, films thicker than 2 mils may bubble. Apply when air and substrate temperatures are between 50-110 ^0F. CURE TIMES & TEMPERATURES Cures set-to-touch in 1.5 to 2 hours at 75 ^0F, cures to handle in 24 hours. Although recoating is not normally necessary if applied over a primer, this coating may be touched up or recoated. The recoat window is 8 to 48 hours; waiting longer may result in reduced adhesion of the second coat. Allow 7-10 days cure at 75 ^0F before placing into severe service, longer cure times may be necessary if the ambient temperature is significantly lower.	CLEANUP Clean equipment with xylol or methyl isobutyl ketone before the film cures. ENVIRONMENTAL This product meets current air pollution regulations regarding hydrocarbon and ozone reactive emissions. It is VOC compliant for the railcar maintenance industry, and contains no lead, chromate, or zinc. PHYSICAL PARAMETERS VOC, ASTM D-3960: 3.36 lb/gal mixed system WEIGHT PER GALLON, ASTM D-1475: 9.50 lbs mixed system NONVOLATILE, mixed system: By weight: 64.6 +/- 2.0 % By volume: 52.8 +/- 1.0% THEORETICAL COVERAGE: 870 ft^2/gallon/mil, dry film VISCOSITY, mixed system, ASTM D-562: 65 Krebs Units MIX RATIO, by volume: 4 parts 66-15182-A to 1 part 66-B POT LIFE, mixed in 5 gal lots: 6-8 hrs @ 75 ^0F. FLASH POINT, TAG CC: 81 ^0F INITIAL GLOSS, 60^0, ASTM D-523: 90 IMPACT RESISTANCE, ASTM D-2794: Direct: 320 in-lbs Reverse: 320 in-lbs
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

REVISED 11-08-2000