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.
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
Technical Data
Zinsser B-I-N
Volume Solids:
56.3%
Solids By Weight:
74.5%
Stain Sealing:
@ 20°C / 50% RH: 45 min
Flammable Limits in Air:
Lower (LEL): 1.2 - Upper (UEL): 9.6
Smoke development
5
Sheen level @ 60°C:
12% to 13%
Limitations
Cover Stain is not intended for application to floors, decks, roof surfaces or any surfaces subject to immersion or prolonged contact with water.
Shelf life:
60 months @ 24°C
Storage / Handling:
Store indoors 4° - 27°C
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
Drying Time @ 21°C
Dry to Touch
Dry to Recoat
Cure Time
35 minutes
2 hours
4 to 7 days
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
Product Information
Application:
Brush, Roller, Pad or Spray
Airless Spray:
Use 0.15” to .017” tip at 1800 to 2200 P.S.I.
Thinning:
Cover Stain is designed to be used without thinning
Application Temperature:
Between 5°C and 32°C
Relative Humidity:
Less than 85%
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.
Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.
Can this be used as an undercoat for Suretherm Anti Condensation Paint?
Answer from Rawlins’ Technical Team:
N-Virol Suretherm Goodbye Mould Thermal Anti Condensation Paint is usually applied to internal wall or ceilings, if you wish to apply this over the Zinsser Cover Stain we would recommend testing on a small area prior to full application for compatibility and adhesion.
Stephen Coke on 2022-05-10 08:45:17
Question:
Is this suitable for priming a new already treated timber gate? I'll be using Zinsser All Coat as a top coat.
Answer from Rawlins’ Technical Team:
Yes assuming the timber is bare, clean, dry, sound and prepared as detailed in the technical data sheet this would be an ideal primer for application under Zinsser Allcoat Exterior.
Mike on 2022-03-17 15:27:36
Question:
Does this paint give damp proof protection?
Answer from Rawlins’ Technical Team:
No, this is an oil based primer, sealer, stain killer that can be applied to metal, painted finishes, wood and cured masonry.
Roger on 2021-08-27 08:45:27
Question:
What colour primer is best to be used if topcoat will be RAL Silver Grey, is is white or should I use same/similar colour?
Answer from Rawlins’ Technical Team:
You would either use the same colour primer or a slightly lighter shade shuold you wish to ensure you do not miss any areas with the topcoat.
Jane Duoe on 2019-11-12 22:58:43
Question:
Are the fumes after painting harmful if painted indoors? The odour is quite strong
Answer from Rawlins’ Technical Team:
Zinsser Cover Stain is sold for use in domestic properties and therefore is safe to use in this situation. Good ventilation during use should be provided as with many solvent based paints. A good flow of air through open windows will minimise solvent fumes. You can download the safety data sheet from the 'Attachments' tab on the product page on our website if you have any further concerns.
Kyle Drewett on 2019-05-23 14:15:36
Question:
Would this be suitable to use as a primer before painting a wooden porch with black Zinsser AllCoat Exterior Gloss?
Answer from Rawlins’ Technical Team:
Yes as long as it is not used on any floor areas.
Gemma on 2018-06-04 09:16:16
Question:
I want to paint over slightly Yellow nicotine stained white emulsion walls without having to wash them down, is there a product that mimics the effect of normal white Matt emulsion that I can just paint over the walls with?
Answer from Rawlins’ Technical Team:
The best product for this job would be the interior Zinsser AllCoat (Solvent-Based). This has a matt white finish and can be left as the finish coat. It may take 2 coats to cover if you are not washing down but if the staining is very slight you may do it in one coat.
MARK RANDALL on 2017-03-20 14:05:58
Question: Hi
I want to paint a varnished wooden framed settee and chairs to use outside.
It is very intricate so virtually impossible to sand.
Will your cover stain primer bond sufficiently well to it to allow a top coat?
Thanks
Answer from Rawlins’ Technical Team:
Zinsser Cover Stain should be fine for this. Provided the surface is clean and free from any waxes or spray polish type materials, the Cover Stain will bond well to the old varnish and provide a good base for a suitable exterior top coat.
Peter Dennett on 2016-02-29 17:07:31
Question:
What is the best primer/sealer/undercoat to apply to exterior marine ply and softwood? Planning to apply 2 coats of Sadolin Superdec on top.
Answer from Rawlins’ Technical Team:
Zinsser Cover Stain would be the best primer to use.
Paul on 2016-02-19 09:35:27
Question:
Can you thin cover stain?
Answer from Rawlins’ Technical Team:
Zinsser Cover Stain shouldn't be thinned for application as it is designed to be applied as supplied but you can use White Spirit for clean up.
Roger baker on 2015-05-28 11:21:24
Question: Can Zinsser Cover Stain be used to seal weeping knots?
Answer from Rawlins’ Technical Team:
No. You would need to scrape away any residue, thoroughly clean the knots with methylated spirits and then apply 1-2 coats as required of Zinsser B-I-N.
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