Cover Stain®

Solvent-based stain-blocker

Cover Stain® has a quick-drying formula that’s touch dry in 30 minutes and recoatable in 2 hours, reducing project time without compromising on quality. The solvent-based stain-blocking primer offers superior coverage and durability, ensuring a long-lasting, pristine finish.

Why Choose Cover Stain®?

Cover Stain® is the best choice for a stain-blocking, primer-sealer as it has the following features and benefits:

  • Exceptional stain-blocking capabilities, the specialist formula effectively seals water, smoke, mould and nicotine stains.
  • Offers superior coverage and adheres to a wide range of interior and exterior surfaces, including wood, metal and masonry.
  • Blocks cedar and redwood bleed.
  • Fast drying time, touch dry in 30 minutes and recoatable in 2 hours.
  • Provides excellent adhesion, ensuring a durable bond on multiple surfaces, eliminating the need for sanding.
  • Resists cracking and peeling, ensuring a long-lasting, professional finish.
Application Types

Product Specification

Key Features & Benefits of Cover Stain®

Sizes:
500ml, 1L, 2.5L, 5L (only available in white), 10L (only available in white)
Colours:
WhiteTintable to most pastel, mid-tone and deep-tone shades
Main Features:
Interior and exteriorSticks to all surfaces without sandingOur best exterior wood sealerAlso available: Cover Stain® WL Tint Base
Environment Types:
Interior, Exterior
Application Types:
Airless Sprayer, Brush, Pad, Roller
Coverage:
9.8m² per Litre
Touch Dry:
30 minutes
Full Cure:
4-7 days
Recoatable:
2 hours

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General FAQs

Here are some of our most frequently asked questions. If you don’t see what you’re looking for, feel free to email at enquiries@tor-coatings.com

A stain blocker is a primer that prevents stains from bleeding through the final coat of paint, and is essential for a flawless, professional finish. It seals in stains, enhances paint adhesion, improves coverage and ensures the topcoat remains uniform.

Cover Stain® is designed to deliver exceptional results with its rapid drying time and outstanding hiding capabilities. Ideal for interior surfaces, this primer effectively seals a variety of stains, including those caused by water, smoke, or fire.

Its quick-drying formula ensures that you can proceed with top coating in a fraction of the time typically required. Cover Stain® dries quickly and offers excellent hiding power, effectively sealing stains and providing a smooth base for topcoats on interior surfaces.

For exteriors, Cover Stain’s unique formulation ensures full penetration and flexibility, especially on unstable wood, while resisting cracking and peeling. It is compatible with all decorative topcoats, making it a versatile choice for both interior and exterior applications.

  • New or previously painted, cured plaster and cement-based coatings
  • Wood (including pine, fir, cedar, redwood, plywood)
  • Metal (including aluminium, iron, steel, and copper)
  • Vinyls, PVC and masonry (including stucco, concrete block, poured concrete and brick)

Cover Stain® is touch dry in 30 minutes and recoatable in 2 hours. It has a full cure time of 4-7 days.

Temperature and humidity directly affect Cover Stain’s drying time. Higher temperatures and lower humidity will accelerate the dry time while lower temperatures and higher humidity will slow down the dry time.

Reviews of Cover Stain®

What our customers are saying about Cover Stain®

Excellent product

Bought this to cover damp stains on walls and ceilings. It does a great job and leaves an excellent surface to paint on. Definitely recommend.

One of the few stain blocks that actually works!

I have tried several stain blocks for watermarks on emulsion paint - this one works really well. One coat over a watermark and it really conceals the mark well. Goes on with a yellow tinge but then dries white. 1 coat of decent white emulsion over and the watermark has gone and doesn’t come back through again.

Excellent!

We got this for a ceiling with terrible nicotine staining in our new house, where it was coming through multiple coats of paint. We used one coat of Cover Stain and then went over with one coat of ceiling paint and you wouldn’t even know the stains were there! It’s amazing.

This stuff just works!

Had a bad leak in my garage, in which I’d put up plasterboard, got bad mould after it dried out and didn’t want to put up new plasterboard. Used this stain block and can’t believe how well it worked, only needed one coat and completely covered it up. Well worth the cost of the tin. Highly recommend!

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Contact

Computershare Governance Services
The Pavilions
Bridgwater Road
Bristol
BS13 8FD
Company number: 04503854

Tor Coatings Ltd
21 White Rose Way
Follingsby Park
Gateshead
Tyne & Wear
NE10 8YX