DESCRIPTION AND USES
Zinsser Metal Primer is a high performance primer designed for application to heavily rusted and clean metal surfaces. This primer increases corrosion control and promotes topcoat adhesion and helps prevent chipping, cracking and peeling. Use of Zinsser Metal Primer eliminates the need for multiple coats of enamel finish. Not for use on galvanized steel.
PRODUCT APPLICATION
SURFACE PREPARATION
ALL SURFACES: Remove all dirt, grease, oil, salt and chemical contaminants by washing the surface with a commercial detergent or other suitable cleaning method. Rinse thoroughly with fresh water and allow to fully dry. All surfaces must be dry at time of application
STEEL: Scrape and wire brush or power tool clean to remove all loose rust, scale and deteriorated previous coatings.
PREVIOUSLY COATED: Previously coated surfaces must be sound and in good condition. Smooth, hard, or glossy finishes should be scarified by sanding to create a surface profile. Zinsser Metal Primer is compatible with most coatings, but a test patch is suggested.
APPLICATION
Apply only when air and surface temperatures are between 50-90°F (10-32°C) and humidity is below 85% to ensure proper drying. Do not apply to surfaces that will exceed 200°F (93°C).
Before using, stir thoroughly to ensure any settled pigment is re-dispersed. If necessary, thin the material with mineral spirits. For brush or roller, thin no more than 5% with mineral spirits. Do not thin with gasoline, lacquer thinner, turpentine, etc. Apply with a good quality brush, roller or spray gun.
Brush: Use light, even strokes. Excessive brushing reduces film thickness and protection.
Roller: A ⅜" nap roller should be used on rough surfaces. Cover approximately one square yard at a time. Roll away from previously coated area and work back to it for a uniform appearance. Use a brush on crevices and sharp edges.
Spray Gun: Follow spray gun directions carefully. Always keep the gun ten to twelve inches from the surface and in motion while spraying. For airless spray, use a .015-.017 tip at 1800 psi.
DRY & RECOAT
Dry and recoat times are based on 70°F (21°C) and 50% relative humidity. Allow more time at cooler temperatures and higher humidity. 272483 will dry to the touch in 4-6 hours and can be recoated after 24 hours. 272484 will dry to the touch is 5-7 hours and can be recoated after 24 hours.
CLEAN-UP
Clean brush and tools with Mineral Spirits. Wipe up splatters before they dry. Follow manufacturer’s instructions to clean spray equipment.