www.pruett-schaffer.com
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PRODUCT NUMBER |
PRODUCT NAME |
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24-47 |
FLAT BLACK W/B ACRYLIC
PRIMER |
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GENERAL
DESCRIPTION Pruett-Schaffer’s
#24-47 Flat Black Paint is a low cost, air drying, water based acrylic
emulsion paint. It is designed as a
spray applied, direct-to-metal finish coat.
The cured film exhibits very good salt and chemical resistance. The
flat finish gives a uniform dry film that hides imperfections in the metal.
The coating allows high film build without sags, so the desired dry film
thickness can be applied in one coat. RECOMMENDED
USES This
product is recommended for railcar, general equipment or steel painting. It
exhibits exceptional adhesion to a wide variety of substrates including
minimally prepared cold rolled steel, galvanized steel, existing coatings,
and even aluminum without pretreatment. For use where long term exterior
durability is required. Not
recommended for immersion service or for areas subject to continual solvent
splash. SURFACE
PREPARATION Apply
direct-to-metal. 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, 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 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 .015-.020 inch tip
size. 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 12.5 mils wet film to get 4 mils dry film for Direct-To-Metal
applications. DRYING
TIME Dries
to handle in less than 1 hour 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, U.S. EPA
Reference Method 24: 0.705 lb/gal COATING DENSITY,
ASTM D-1475: 9.47 lbs/gal +/-
.25 NONVOLATILE: By weight: 33 +/- 2.0 % By volume: 24 +/- 1.0% THEORETICAL
COVERAGE: 380 sq. ft./ gallon
@ 1mil dry film INITIAL GLOSS, 600,
ASTM D-523:10-20 VISCOSITY, ASTM
D-562: 75-85 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-lbs Reverse: > 100 in-lbs ELONGATION, ASTM
D-522: 1/4 in conical
mandrel: no cracking or flaking |
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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. |
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REVISED 04-21-2003