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Polar Specialist Coatings

Polar Stain Block Paint | White Interior Stain Blocking Undercoat

Extremely Durable Finish
Blocks Unwanted Stains
One Coat Application
Colour
Style
Size
£36.99
£36.99
    Free Technical Support
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    Product Details

    Stop stubborn stains from resurfacing with Polar Stain Block Paint, a powerful interior undercoat designed to seal problem areas before redecorating. Ideal for use on walls, ceilings, and other interior surfaces, it creates a clean, stable base ready for painting or wallpapering.

    Formulated for reliable stain control, this easy-to-apply white paint permanently locks in unsightly marks, helping interiors look fresher, cleaner, and professionally finished for longer.

    Key Features

    Prevents Stains from Resurfacing: Seals problem areas before redecorating to stop old stains showing through.

    Permanently Blocks Stains: Effective against rust, grease, mould, nicotine, smoke damage, coffee, watermarks, soot, graffiti, tannins, and more.

    Ideal for Interior Walls & Ceilings: Suitable for wood, plaster, cement, stone, metal, plastic, windows, and doors.

    Perfect for Pre-Decorating: Use as an undercoat before painting or wallpapering for a smooth, clean finish.

    Easy Application: Apply evenly with a brush or roller; apply a second coat if required.

    Long-Lasting Finish & Excellent Coverage: Leaves a smooth, attractive surface with reliable stain-blocking performance.

    Seal stains once and redecorate with confidence. Choose Polar Stain Block Paint for cleaner interiors 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

    Brick
    Cement
    Concrete
    Painted Surface
    Plaster

    Technical Specifications

    Interior / Exterior Interior
    Number of Coats Two
    Coverage 1 litre covers up to 11m²
    Dry Time Touch Dry: 3 hours
    Re-coatable: 12-24 hours
    Colours White, Magnolia
    Application Solvent resistant brush or roller.
    Paint Base Solvent based
    Size 1 Litre

    Application

    Preparation

    Ensure the surface is clean, dry and free from wax, grease or oil stains.
    Clean surface with water and detergent and dry.
    Sand and scrape down the surface, removing any paint flakes or rust.

    Application

    Stir well before use.
    For optimal adhesion performance, apply using a brush or roller.
    Ensure the stain-affected area is extensively covered.
    Application of multiple coats is recommended to fully seal and block stains reappearing.
    Leave 12-24 hours between applying coats and should be applied within 5 days.
    Allow the surface to fully dry before wallpapering or painting.

    Finishing Up

    Return any excess paint to the container.
    Brushes should be cleaned immediately with White Spirit.
    Store in a cool dry place with the lid tightly closed.

    Downloads

    Safety Datasheet

    Technical Datasheet

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