Professional decorators, estate maintenance teams, restoration contractors and project managers have another problem-solving product from Zinsser. Cover Stain is an all-surface, all-purpose, oil-based primer, sealer, and stain killer for interior and exterior use, and is recoatable in just 2 hours.

Primes:

Cover Stain can be applied to metal and other glossy finishes, without the need to sand the surface down prior to application. It is ideal for surfaces including:

• Panelling
• Wood trim
• Old wallcoverings
• Glossy paints
• Clear finishes
• Siding
• Externally facing shutters
• Doors and windows
• Metal
• Cured masonry

- and much more!

Seals

Porous surfaces, including:

• Plaster
• Bare wood
• Masonry
• Previously coated drywall

Cover Stain can also be used to seal exterior woods, new or old, weathered, or untreated, and blocks tough cedar and redwood tannin bleed.

Blocks tough stains and odours:

• Nicotine discolouration
• Smoke damage
• Soot
• Water-stains
• Mildew
• Graffiti
• Rust
• Dark colours

Outstanding adhesion

Sticks to hard-to-paint surfaces, including:

• Ceramic tiles
• PVC
• Weathered wood
• Glass
• Glossy enamel paint

Cover Stain can even be used on metal office cabinets and bookcase, transforming old-fashioned looking offices into new, modern and cutting edge designed workplaces at a fraction of the cost.

Click To Jump To Section:

• Features & Benefits
• Product Specification
• Drying Times
• Surface Preparation
• Application Methods
• Health & Safety

Features & Benefits

• For interior and exterior use on difficult to paint surfaces
• Sticks to all surfaces without sanding
• Seals water, smoke, and nicotine stains
• Zinsser’s best exterior wood sealer
• Blocks cedar and redwood bleed
• Touch dry in 35 minutes
• Recoatable in 2 hours
• Available in white and eight mid tone colours

Product Specification

Recommended Uses

• Recommended for application to fire, smoke and water damaged surfaces, including interior ceilings, walls, doors, trim, cabinets, furniture and related paintable surfaces.
• Exterior siding, fascia, soffits, trim, doors, walls, foundations, railings, and related paintable surfaces that may have been damaged by fire, smoke, or water.

Drying Times

Coverage

• 9.8m2 per litre. Coverage may vary depending upon method of application and surface porosity.

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, always wash surface with an appropriate ammoniated cleaning solution or solvent (do not use tri sodium phosphate- based cleaners).
• Remove any peeling and / or unsound coatings.
• Sand any remaining paint film edges smooth.
• Lightly sand exposed exterior wood with 80 to 100grit 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 interior mildew with an interior mildew cleaner, such as Zinsser Mould Killer & Remover.
• Allow surface to dry completely before priming.
• Countersink exposed nail heads, spot-prime and fill all nail holes and gouges.
• Wire brush rusty areas.
• Spot prime knots and sap streaks with B-I-N Primer-Sealer before whole surface priming with Cover Stain.

Application Methods

• Shake or stir before using. In most cases only one coat is necessary to prime most surfaces.
• If excessive absorption occurs over very porous substrates a second coat may be necessary.
• Spot priming is recommended only under high hiding topcoat paints.
• For best results prime entire surface before painting.
• Allow to come to room temperature before use.
• Use in a well-ventilated area avoiding high humidity. Shake can vigorously until ball inside can rattles.
• Turn can upside down and continue shaking for one minute, shake occasionally during use.
• Spray 10”-12” from object with short dusting strokes.
• Over-coatable after 30 minutes.
• To clean spray for future use, turn can upside down and spray until clear gas is emitted.
• Note that temperature and humidity directly affect dry time of the product. Higher temperatures and lower humidity will accelerate the dry time while lower temperatures and higher humidity will slow down the dry time.

Clean Up

• Clean up spills and drips with a rag soaked in mineral spirits or paint thinner.
• If spills or drips have dried, use paint remover.
• Application tools may be cleaned using paint thinner – rinse tools repeatedly in mineral spirits or paint thinner until solvent runs clear and tool is thoroughly cleaned.
• Use Zinsser BIN Brush Cleaner to remove dried paint from brush.

Health & Safety

• Refer to the safety data sheet in the attachments section above for further details.