|
PRODUCT NUMBER |
PRODUCT NAME |
|
24-26622-BNSF |
LIGHT GRAY WATERBASED FREIGHTCAR
PAINT |
|
GENERAL
DESCRIPTION Pruett-Schaffer’s
#24-26622-BNSF Light Gray Paint is an air drying, water based acrylic
emulsion paint. It is designed as a
high gloss, spray applied, direct-to-metal finish coat. The cured film exhibits very good salt and
chemical resistance. The coating allows high film build without sags, and the
desired dry film thickness can be applied in one coat. RECOMMENDED
USES This
product is recommended for railcar and general equipment maintenance. 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. Use where long term exterior
durability and gloss retention is required. Not recommended for immersion
service or for areas subject to continual solvent splash. SURFACE
PREPARATION Apply
over primer (follow primer surface preparation instructions) or
direct-to-metal. For DTM service,
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 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 2-3 mils dry film over primer, 3-4 mils dry film DTM. DRYING
TIME Dries
to recoat or stencil in 1 to 1.5 hours 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, ASTM
D-3960:1.15 lb/gal WEIGHT PER GALLON,
ASTM D-1475: 10.33 lbs NONVOLATILE: By weight: 50.4 +/- 2.0 % By volume: 38.0 +/- 1.0% THEORETICAL
COVERAGE: 610 ft2/gallon/mil,
dry film INITIAL GLOSS, 600,
ASTM D-523: 80 min. VISCOSITY, ASTM
D-562: 65-80 Krebs Units FLASH POINT,
PENSKY-MARTINS CC: > 141 0F TEST DATA SALT SPRAY EXPOSURE,
ASTM B-117 and D-1654, 5% SOLUTION: 160 hrs rust
creepage from scribe: < 1 mm DISTILLED WATER
RESISTANCE, ASTM D-714: 72 hrs immersion @
75 0F: no fading or blistering ACCELERATED
WEATHERING, ASTM G-53 WITH A340 BULB, 4 HRS UV THEN 4 HRS CONDENSING HUMIDITY
FOR 336 HRS: 60 degree gloss
(ASTM D-523), change from 78 to 60 Chalking: none
Flaking: none Checking: none
Blistering: none Cracking: none IMPACT, ASTM
D-2794: Direct: > 60
in-lbs Reverse: > 60 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
REVISED 12-02-2004