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www.pruett-schaffer.com

PRODUCT NUMBER	PRODUCT NAME
28-65	Gray Conduit Lining, Haps Free
GENERAL DESCRIPTION Pruett-Schaffer’s #28-65 Gray Conduit Lining is an air-drying, water reducible alkyd paint. It is designed as a spray applied, high-gloss, direct-to-metal finish coat for metal substrates. The cured film exhibits good flexibility and corrosion resistance, abrasion resistance, and good surface slip for wire pulling. This product is essentially Haps free for Allegheny County reporting purposes. RECOMMENDED USES This product is recommended as an internal coating for conduit. It exhibits good application characteristics and adhesion to a wide variety of substrates including minimally prepared cold rolled steel, castings, forgings, aluminum, and existing coatings. Not recommended for immersion service or for areas subject to temperatures in excess of 300 ⁰F for prolonged periods. The paint is not flammable and has very low toxicity. SURFACE PREPARATION Apply as a direct-to-metal coating. This coating is tolerant of less than perfect surface preparation , so 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 an 80/20 mixture of water/butyl cellosolve (Pruett-Schaffer thinner #98-8937). 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 air-assisted or airless spray. Apply 4 wet mils to achieve 1 mil dry film thickness. Because of the low viscosity of this product, some settling will occur. Mild mechanical agitation is highly recommended to keep the product uniformly mixed during application. DRYING TIME Dries tack free in 10-20 minutes at 77 ⁰F and 50% Relative Humidity. Light handling may be possible in 45 minutes. 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 or forced warm air drying will reduce dry time in cold shops. CLEANUP Clean equipment with warm soap and water or water/butyl cellosolve (with some ammonia) mixtures before the coating 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. It contains no lead, or chromate. PHYSICAL PARAMETERS VOC, ASTM D-3960: 3.05 lb/gal WEIGHT PER GALLON, ASTM D-1475: 9.63 lbs NONVOLATILE: By weight: 28.1 +/- 2.0 % By volume: 25.6 +/- 1.0% THEORETICAL COVERAGE: 410 ft²/gallon/mil, dry film INITIAL GLOSS, 60⁰, ASTM D-523:> 80 VISCOSITY, ASTM D-4212: 30-45 seconds #2 Zahn cup pH RANGE, ASTM D-4584:8.0-9.0 FLASH POINT, PENSKY-MARTINS CC: >142 ⁰F TEST DATA SALT SPRAY EXPOSURE, ASTM B-117 and D-1654, 5% SOLUTION: over 300 hrs IMPACT, ASTM D-2794: Direct: > 60 in-lbs Reverse: > 20 in-lbs ELONGATION, ASTM D-522:1/4 in conical mandrel: no cracking or flaking
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 04-20-2001 PHONE: (412) 771-2000 FAX: (412) 771--2205