The Ronseal Stain Block 400ml is a fast-acting stain-blocking aerosol spray designed to permanently seal unsightly marks on interior walls and ceilings. Its quick-drying formula effectively covers a wide range of household stains, providing a clean surface ready for painting in just 4 hours. Ideal for covering stubborn stains such as nicotine, ink, crayon, and grease, this spray ensures a flawless finish with minimal effort.

Key Features & Benefits

Permanently Blocks Stains

• Effectively seals and isolates stains to prevent bleed-through.
• Suitable for use on interior walls and ceilings.

Quick Drying

• Touch dry in minutes.
• Ready to paint over in as little as 4 hours.

Effective on Common Household Stains

• Covers difficult stains including:
• Nicotine
• Ink
• Crayon
• Grease
• Watermarks and more

Easy to Use Spray Application

• Convenient aerosol format allows for controlled application with minimal mess.

Buildable Coverage

• Takes 2-3 coats for complete stain blocking depending on stain severity.

Available Size & Specifications

• Coverage: Varies by stain size and surface type.
• Drying Time: Ready to paint over in 4 hours.
• Application Method: Aerosol spray.

How to Apply

Preparation

• Ensure the surface is clean, dry, and free of loose material.
• Shake the can thoroughly before use.

Application

1. Hold the can 20-30cm from the surface.
2. Apply in light, even coats.
3. Allow each coat to dry before applying the next.
4. Apply 2-3 coats for full stain coverage.
5. Allow 4 hours drying time before painting over.

Maintenance

• Once painted over, the stain block does not require special maintenance.
• Any unused stain block should be stored upright in a cool, dry place.

Ideal Applications

1. Interior walls and ceilings
2. Plaster, brick, and painted surfaces
3. Residential and commercial spaces

FAQs

Q: Can this be used on exterior surfaces?
A: No, this product is designed for interior use only.

Q: How many coats are recommended?
A: Typically 2-3 coats, depending on the severity of the stain.

Q: Can I use emulsion paint over this stain block?
A: Yes, it is suitable for overcoating with water-based and oil-based paints.

Q: Will this cover mould stains?
A: It will block the stain, but mould should be treated with a mould remover before application to prevent regrowth.

Why Choose Ronseal Stain Block 400ml?

• Permanently blocks tough household stains.
• Quick and easy aerosol application.
• Fast drying ready to paint in 4 hours.
• Delivers a clean, professional finish on interior surfaces.
• Trusted Ronseal quality for reliable stain protection.