Zinsser Cover-Stain 390ml Aerosol

Zinsser Cover Stain 390 ml Aerosol is a solvent-based primer, sealer and stain blocker in an easy-to-use spray format, ideal for spot priming and tackling awkward or detailed areas where brush-on primers are impractical. It delivers the same powerful stain-blocking performance as the larger liquid primer but in a portable aerosol can for quick applications.

Key Features

• Pack Size: 390 ml aerosol

• Primer Type: Solvent-based primer, sealer and stain blocker

• Finish: Matt, white primer base

• Application: Aerosol spray (handy for trim, small areas and difficult-to-reach spots)

• Surface Use: Interior & exterior

• Drying: Touch dry ~30–35 minutes; recoatable in ~2 hours under normal conditions

• Coverage: Approx. ~2 m² per can (varies with surface and application)

Performance & Benefits

Fast Stain-Blocking Primer
Zinsser Cover Stain Aerosol permanently seals common stains including water, smoke and nicotine, helping ensure topcoats go on clean and blemish-free.

Excellent Adhesion Without Sanding
The solvent-based formulation bonds strongly to many surfaces (including wood, plaster, metal, masonry and PVC) without the need for aggressive sanding, saving time and effort.

Interior & Exterior Ready
Suitable for use on a wide range of substrates both inside and outside the home, making it great for spot priming door frames, trims, facias, furniture accents and small metalwork.

Convenient Spray Format
The aerosol delivery makes this product especially useful for touch-ups, repairs and hard-to-reach places where traditional liquid primers can’t easily access.

Recommended Applications

Use as a primer/sealer for:

• Spot priming interior trims and skirting

• Exterior woodwork like fascias and soffits

• Metal railings, brackets and fixtures

• Previously stained or discoloured surfaces

• Small areas where a full tin primer isn’t practical

Surface Preparation & Application

1. Prepare Surface: Ensure surfaces are clean, dry and free of loose paint, dust and grease.

2. Shake Well: Shake the aerosol can vigorously before use.

3. Spray: Hold the can approx. 25–30 cm from the surface and apply in thin, even coats.

4. Dry: Allow primer to touch dry in ~30–35 minutes; ready for topcoat in ~2 hours under normal conditions.

5. Clean Nozzle: After spraying, invert can and spray briefly to clear the nozzle for future use.

Why Choose Zinsser Cover Stain 390 ml Aerosol?

Zinsser Cover Stain Aerosol combines professional-grade stain blocking and surface sealing with the convenience of an aerosol spray, making it perfect for spot-priming and small jobs where speed and accessibility are essential. Its ability to seal tough stains and bond to a wide variety of surfaces gives a solid base for any finish coat — interior or exterior — with minimal prep work.