www.pruett-schaffer.com
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PRODUCT NUMBER |
PRODUCT NAME |
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34-68 |
BLACK TOUCH UP PAINT |
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GENERAL
DESCRIPTION Pruett-Schaffer’s
#34-68 Black Touch Up Paint is a medium
gloss, air drying, solvent based alkyd paint. It is designed as a brush or roller
applied, rust preventative repair coating. It exhibits good flexibility,
exterior durability, and fast dry in cold weather. RECOMMENDED
USES This
product is recommended for general maintenance use on railcars, storage
tanks, machinery, and other steel equipment wherever a good quality alkyd
finish is needed. It exhibits exceptional adhesion to a wide variety of
substrates including minimally prepared cold rolled steel, forgings,
castings, and existing coatings. This coating is specially recommended for
in-the-field repairs, over rough surfaces, or where extensive surface
preparation will not be performed, as the high build finish and medium gloss
of this paint will hide many of the surface defects that would be readily
apparent with a lower solids gloss paint. It is not recommended for immersion
service or for areas subject to severe chemical exposure. SURFACE
PREPARATION For
severe service, metal substrates should be blasted to SSPC-SP-6 minimum, with
a 1 mil blast profile, and primed with a good quality alkyd primer (such as
Pruett-Schaffer #30-12620). This coating I s very tolerant of
less than perfect surface
preparation, so hand tool |
cleaning
may be sufficient for some uses. At a minimum for acceptable performance,
surfaces to be coated must be clean and dry, and free of oil and grease,
loose rust and paint, weld spatter, burning slag, dust, and chalk. Feather all rough or sharp edges. Chalky or dusty surfaces should be power
washed and allowed to dry completely. THINNING Under
normal conditions no thinning is necessary.
Thin if necessary for spraying with xylol or toluol. Add a little at a time with constant
gentle agitation to a maximum of 5% by volume. In ambient temperatures over 85 0F
Aromatic 100 or Aromatic 150 may be used if “dry spraying” occurs. APPLICATION
EQUIPMENT May
be applied by brush, roller, or airless spray. Airless spray gives the best results over large surfaces, use
.015-.020 inch tip size. If applying with a cup type spray gun, thinning may
improve application. Use a brush or roller for touch up; brushes should be of
polyester or nylon construction. Apply to 2-4 mils dry film thickness. DRYING
TIME Dries
to recoat in 1 to 2 hours at 77 0F.
Dry to light handling in 24 hours.
Force drying ovens may be used, allow 30 minutes minimum for flashoff
of solvent before heating. |
CLEANUP Clean
equipment with xylol or toluol before the film dries. ENVIRONMENTAL This
product meets current air pollution regulations regarding hydrocarbon and
ozone reactive emissions. It is VOC compliant for the railcar and
architectural maintenance industries, and contains no lead or chromate. PHYSICAL
PARAMETERS VOC, U.S. EPA
Reference Method 24: 3.29 lb/gal ORGANIC SOLVENT, %
WEIGHT: 33.35 WEIGHT PER GALLON,
ASTM D-1475: 9.89 lb NONVOLATILE: By weight: 66.7 +/- 2.0 % By volume: 52.6 +/- 1.0% THEORETICAL
COVERAGE: 843 ft2/gallon/mil,
dry film INITIAL GLOSS, 600
, ASTM D-523:45-60 VISCOSITY, ASTM
D562: 70-82 Krebs Units FLASH POINT, TAG
CC: 25 0F TEST DATA IMPACT, ASTM
D-2794: Direct: > 80
in-lbs Reverse: > 80 in-lbs ANTISAG INDEX, ASTM
D-4400: >8 mils |
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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 03-16-2000