Zinsser Cover Stain 2.5lt

Zinsser Cover Stain 2.5 Litre Primer & Sealer is a professional-grade, solvent-based primer, sealer and stain-blocking undercoat designed to prepare and protect a wide range of interior and exterior surfaces ahead of topcoating. It delivers outstanding adhesion, stain-blocking performance and universal compatibility with both water-based and solvent-based topcoats.

Key Features

• Pack Size: 2.5 Litre

• Base: Solvent-based primer-sealer

• Colour: White (can be tinted to mid-tone colours)

• Application: Brush, roller, pad or airless spray

• Coverage: Up to ~9.8 m² per litre (varies with surface and texture)

• Drying Times:

  • Touch Dry: Approx. 30–35 minutes

  • Recoatable: Around 2 hours

  • Fully Cured: 4–7 days (depending on conditions)

• Clean-Up: Solvent/paint thinner

Performance & Benefits

Exceptional Stain Blocking & Sealing
Cover Stain effectively seals and blocks tough blemishes such as water stains, smoke damage, nicotine discolouration and tannin bleed — preventing them from reappearing through the final topcoat.

Strong Adhesion to Challenging Surfaces
The solvent-based formula adheres reliably to a wide range of substrates — including dense, glossy or smooth surfaces — often without the need for sanding.

Interior & Exterior Versatility
Suitable for use on internal walls, ceilings, trim, wood and previously painted finishes, as well as exterior timber, masonry, metal and PVC.

Universal Topcoat Compatibility
Once dry, it accepts both water-based and solvent-based topcoat paints, providing flexibility for decorative finishing.

Recommended Applications

Ideal for priming before painting on:

• Plasterboard, plaster and drywall

• Bare and previously painted wood

• Exterior timber, fascias, soffits and trim

• Masonry, brickwork and concrete

• Metal and PVC surfaces

• Stained or discoloured interior walls and ceilings

Surface Preparation & Application

1. Prepare: Ensure surfaces are clean, dry and free from dust, grease and loose material.

2. Mix: Stir thoroughly before and during application.

3. Apply: Use a brush, roller or spray for even coverage.

4. Dry: Allow the primer to touch dry in ~30–35 minutes.

5. Recoat: Ready for topcoat after ~2 hours in normal conditions.

6. Clean: Clean tools with suitable solvent or paint thinner.

Why Choose Zinsser Cover Stain Primer & Sealer 2.5 Litre?

Zinsser Cover Stain 2.5 Litre combines powerful stain-blocking properties, excellent adhesion and fast drying times in a versatile primer-sealer suitable for both interior and exterior use. Its ability to seal problematic stains and provide a solid foundation for a wide range of topcoats makes it a dependable choice for renovation, repair and decorative painting projects.