PRODUCT NUMBER

PRODUCT NAME

26-13-P

RED OXIDE WATERBASED PRIMER LOW VISCOSITY

GENERAL DESCRIPTION

Pruett-Schaffer’s #28-13 Red Oxide is an air- drying, water reducible alkyd paint. It is designed as a spray- or dip-applied, low gloss, primer for metal substrates. The cured film exhibits good flexibility, corrosion resistance, abrasion resistance, and adhesion over marginally prepared substrates.

RECOMMENDED USES

This product is recommended as a primer for equipment and machinery, sheet and tube stock, shelving, axles, grating, bins and tanks. 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 ^F. The paint is not flammable and has very low toxicity.

SURFACE PREPARATION

Feather all rough or sharp edges. This coating is very tolerant of less than perfect surface preparation however, 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

For use in conventional cup gun spray equipment no thinning is necessary or desirable. Ready to use for dip application,( thin with an 80/20 mixture of water/butyl cellosolve (Pruett-Schaffer thinner #98-8937) for additional viscosity reduction if necessary). Add thinner a little at a time with constant gentle agitation until proper dipping viscosity is reached.

APPLICATION EQUIPMENT

This paint may be applied by brush, dip tank application, or conventional siphon (cup-gun) spray. Brushes should be of polyester or nylon construction. Apply .7 to 1.2 mils dry film thickness if direct-to-metal. When using dip tank application, contact Pruett-Schaffer for further information regarding pH and viscosity maintenance requirements of dip tank.

DRYING TIME

Dries tack free in 15-45 minutes at 77 ^F and 50% Relative Humidity at 1 mil dry film thickness. Light handling may be possible in 60 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 before the film 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, chromate, or zinc.

PHYSICAL PARAMETERS

VOC, ASTM D-3960: 2.78 lb./gal

WEIGHT PER GALLON, ASTM D-1475:

9.71 lbs.

NONVOLATILE:

By weight: 35.1 +/- 2.0 %

By volume: 22.6 +/- 1.0%

THEORETICAL COVERAGE:

362 ft²/gallon/mil, dry film

INITIAL GLOSS, 60^, ASTM D-523:

5-15

VISCOSITY:20-25 sec #2 zahn

REDUCE WITH 80/20 MIX WATER/BUTYL CELLOSOLV TO MAINTAIN DIPPING VISCOSITY:

pH RANGE, ASTM D-4584: 8.0-9.0

FLASH POINT, PENSKY-MARTINS CC:

>142 ^F

TEST DATA

SALT SPRAY EXPOSURE, ASTM B-117 and D-1654, 5% SOLUTION:

160 hrs rust creepage from scribe: < 1 mm

IMPACT, ASTM D-2794:

Direct: > 80 in-lbs. Reverse> 40 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.