Product Overview
Zinsser® Cover Stain® Oil-Based Primer is an all purpose oil-based primer designed for interior or exterior applications where an oil-base primer is desired. Cover- Stain provides excellent penetration and flexibility and has excellent adhesion and stain blocking properties. Cover- Stain has excellent adhesion to dense, glossy surfaces such as enamel paints and varnishes, paneling, laminates, and ceramic tile without the need for sanding or de- glossing.
Cover-Stain is recommended for application on interior and exterior surfaces that have been damaged by fire, smoke or water. Interior surfaces include new or previously painted drywall, cured plaster and cement- based coatings, wood (including pine fir, cedar, redwood, and plywood), metal (including aluminum, iron, steel, and cooper), vinyl, PVC, masonry (including stucco, concrete block, poured concrete, and brick). Exterior surfaces include new or previously painted wood (including pine, fir, cedar, redwood, and pressure-treated wood), hardboard, metal (including aluminum, iron, steel, and copper), vinyl and PVC.
- Fast drying – Recoat in less than 1 hour
- Sticks to all surfaces and sands easily
- Designed for interior and exterior surfaces
- High hiding formula blocks most stains from fire, smoke and water damage
- Excellent tannin blocker – use to seal bare cedar and redwood
- Easy paint thinner clean-up
DRY TIME: In most cases Cover-Stain will dry to the touch in 30 minutes and can be recoated after 1 hour. The dry primer film develops full adhesion in 7 days. Lower temperatures, higher humidity and the addition of tint will prolong the dry and cure time.
SURFACE PREPARATION: Surfaces should be clean, dry, sound and free of dust, dirt, excessive chalky material, grime, grease, oil, wax, mildew, wallpaper, adhesive or any contamination that may interfere with adhesion. If unsure of cleanliness, always wash surface with an appropriate ammoniated cleaning solution or solvent (do not use TSP as a cleaner). Remove any peeling and/or unsound coatings. Sand any remaining paint film edges smooth. Lightly sand exposed exterior wood with 80 to 100 grit sandpaper to remove loose or weathered wood fibers and mill glaze. When priming over stained areas, first attempt to remove as much of the stain as possible by washing, sanding, scraping, etc. Remove exterior mold & mildew with Zinsser Jomax® Mildew Killer and House Cleaner. Remove interior mildew with an interior mildew cleaner. Allow surface to dry completely before priming. Countersink exposed nail heads, spot prime and fill all nail holes and gouges with Zinsser Ready Patch® spackling compound. Wire brush rusty areas. Spot prime knots and sap streaks with B-I-N® Primer-Sealer before whole surface priming with Cover Stain Oil-Based Primer.
Download full technical data sheet here.
Reviews
