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Polar Specialist Coatings

Polar Mould & Stain Block Spray | White Anti Mould Paint for Walls & Ceilings

4.66 ( 67  Reviews )
Primer, Undercoat & Topcoat In One
Prevents Future Rust
Easy to Apply
Size
Colour
Regular price
£12.99
Sale price
£12.99
Free Technical Support
Quality Assurance
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Product Details

Seal out stubborn stains for good with Polar Mould & Stain Block Spray, a powerful white primer spray designed to lock in marks and refresh interior surfaces. Its fast-acting formula permanently blocks unsightly stains while helping keep walls and ceilings looking clean and well-maintained.

Ideal for moisture-prone areas, this easy-to-use spray is perfect for bathrooms, kitchens, and other interior spaces where stains and damp can reappear. Quick drying and simple to apply, it’s an essential step before redecorating.

Key Features

Permanently Blocks Stains: Seals mould, rust, nicotine, smoke damage, pen and crayon marks, and water marks.

Ideal for Interior Walls & Ceilings: Designed for internal use in kitchens, bathrooms, and high-humidity areas.

Fast Drying & Easy Application: Touch dry in 15 minutes and fully cured in 24 hours.

Efficient Coverage: 500ml covers up to 2m²; apply 2–3 coats for best results.

Smooth Matt White Finish: Creates a clean, even surface ready for redecorating.

Block stains once and redecorate with confidence. Choose Polar Stain Blocking Spray for cleaner surfaces and long-lasting results you can trust.

Coverage Calculator

How Much Do I Need?

Measure your area precisely, drop the numbers into this smart calculator and it will tell you straight away how many litres you’ll need to complete your project.

You will need

litres

Use For The Following Surface Types

Moulds
Nicotine
Pen & Crayon
Rust & Smoke
Water Marks

Technical Specifications

Interior / Exterior Exterior
Number of Coats Two coats
Coverage 1L covers up to 6m². Coverage will vary depending on the nature and porosity of the substrate and the application method.
Dry Time Touch dry in just 2 hours, re-coatable after 4 hours and fully cured after 24 hours at 20°C.
Colours Black
Size 500ml
1 Litre
2.5 Litre