PRODUCT NUMBER

PRODUCT NAME

10-70

ZINC RICH EPOXY PRIMER

GENERAL DESCRIPTION

Pruett-Schaffer’s #10-70 Zinc Rich Epoxy Primer is a Zinc filled, two component, phenalkamine-cured epoxy for use as a heavy-duty maintenance primer. It is designed as a VERY FAST DRY low viscosity spray applied, corrosion resistant, ferrous metal coating to replace galvanizing or INORGANIC ZINC. It exhibits excellent adhesion over a wide variety of substrates, and exceptional corrosion and chemical resistance. Zinc is premixed into the A side for easier use. No sifting & stirring.

Suspension properties are excellent compared to other low viscosity zinc filled sytems! This product contains approximately 71% zinc in the dry film.

RECOMMENDED USES

Oftentimes it is used as a replacement for Inorganic Zinc when it is not possible to blast the metal substrate. Use to protect machinery, tanks, and structures from corrosion in aggressive environments where chemicals, salt, water, fuels, and oils are present. Formulated to allow high film build in one pass to protect hard to cover sharp edges. Suitable for topcoating with a wide variety of epoxy, urethane, vinyl, or acrylic emulsion topcoats. Not recommended for concentrated acid or bases because of reaction with the zinc and not recommended over existing coatings because the galvanic action of the zinc will be negated.

SURFACE PREPARATION

For severe service, metal substrates should be blasted to an SSPC-SP-10 white metal blast with a 1.5 +/- .5 mil blast profile.

An SP-6 commercial blast may be sufficient for many repair or DTM applications with less severe requirements. Degreasing and hand tool or power tool cleaning, power washing, brush blasting, sanding, or a combination of these may produce acceptable surfaces for many applications. All surfaces to be coated must be clean, dry and free of oil and grease, loose rust and paint, weld spatter, burning slag, dust, and chalk.

MIXING INSTRUCTIONS

Mix 4 parts by volume #10-70 A with 1 part 10-70 B Hardener. Mix at slow speed to avoid entraining air into the paint. Use at once, there is no induction time.

THINNING

No thinning should be necessary. To thin

Or clean-up use an exempt solvent such as methyl acetate to maintain VOC or Xylol if not . Add a little solvent at a time to the mixed system with constant gentle agitation to a maximum of 5% by volume.

APPLICATION EQUIPMENT

May be applied by airless, air-assisted, siphon gun or pressure pot spray. Airless spray gives the best results, use .015 inch tip size. Apply 7-8 mils wet film thickness to yield 3-4 mils dry film thickness. Brushes for touchup should be of polyester or nylon construction.

CURE TIMES & TEMPERATURES

Cures set-to-touch in 15-30 minutes at 77 ^F, tack-free in 1-2 hours. Allow 7-10 days cure at 70 ^F before placing into severe service, longer if ambient temperature is lower. Recommended

minimum application temperature is 40 ^F.

CLEANUP

Clean equipment with xylol or toluol before the film cures.

ENVIRONMENTAL

This product meets current air pollution regulations regarding hydrocarbon and ozone reactive emissions. It is VOC compliant for most industry's, and contains no chromate.

PHYSICAL PARAMETERS

VOC, ASTM D-3960: 2.79 lb./gal mixed system

WEIGHT PER GALLON, ASTM D-1475:

16.58 lbs. mixed system

NONVOLATILE, mixed system:

By weight: 74.4 +/- 2.0 %

By volume: 47.3 +/- 1.0%

THEORETICAL COVERAGE:

758 ft²/gallon/mil, dry film

INITIAL GLOSS, 60^, ASTM D-523:1-5

VISCOSITY, mixed system, ASTM D-4212: 20-40 sec #3 Zahn Cup

POT LIFE, mixed in 5 gal lots:

5-6 hrs @ 77 ^F; 4-5 hrs @ 90 ^F

FLASH POINT, TAG CC: ^F

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.