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Polar Specialist Coatings

Polar Premium Blockseal - 5 litres - Protects & Seals Stone, Concrete, Brick & Block Paving Surfaces - Ideal for Exterior Paths, Paving, Driveways, Patio & Slabs - Satin Mid Sheen Finish

Renews & Protects
Hard Wearing & Water Resistant
Quick Drying Time


5 Litre
Regular price
Sale price
    Free next day delivery on all UK orders. Learn more
    Free Technical Support
    Quality Assurance
    Made in the UK

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    Product Details

    Acrylic based solution that delivers a tough, long-lasting polymeric seal on exterior concrete surfaces, with a smooth satin mid sheen finish. Polar Blockseal provides a sealant against water damage, oil and dirt, while also protecting against fungal, mould and algae growth. Formulated for exterior concrete, stone or brick areas such as; block paved driveways, pathways, natural stone, patios and flagstones. Apply using Polar Garden Sprayer or brush / roller. Coverage up to 25-35㎡ per 5 Litres. Apply a minimum of 2 coats, allowing 12 hours between applications. Dry time of 1-2 hours after final coating.
    • DURABLE SEALER - Polar Blockseal delivers an outstanding polymeric coating performance for patio and paving stones. Binds surface particles, providing a tough, self-cleaning, flexible seal coating. Seals against water damage, dirt and oil spills. Long-lasting durability against any weather conditions, that is also hard-wearing with a satin mid sheen finish.
    • PROTECTION AGAINST ALGAE - Do anyway with constantly power washing your driveway or paths. Polar Blockseal is formulated to remove tough stains and algae growth. Provides long-lasting protection against fungal moss, lichen, mould and algae growth under stone areas.
    • MULTI-SURFACE EXTERIOR USE - Specifically designed for exterior use only. Protects and seals both new and old concrete stone, brick and paving surfaces. Ideal for use outdoors on areas such as; block paved drives, pathways, natural stones, patios, flagstones and more.
    • EASY TO APPLY - Polar Blockseal is easy and quick to apply to outdoor surfaces. Ensure the surface is clean, dry and free from contaminants. Stir well before and use without thinning down. For optimal coverage and performance results, use Polar Garden Sprayer or apply with brush or roller. Coverage up to 25-35㎡ per 5 Litres. 1 Litre covers 6-8㎡ as a mist coat or 3-4㎡ as a flood coat. Dry time of 1-2 hours/
    • SMOOTH SATIN FINISH - Acrylic based solution that provides a tough, long-lasting polymeric seal on concrete stone and brick surfaces. Clear liquid that doesn’t over-alter the surface look of concrete stone. Provides a smooth satin mid sheen finish to driveways, paving stones, patios or flagstone areas.

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    You will need


    Use For The Following Surface Types


    Technical Specifications

    Interior/Exterior Exterior
    Number of Coats One
    Coverage 5 Litres covers up to 35m²
    Dry Time Touch Dry: 1-2 hours
    Dry: 24 hours
    Application Solvent resistant airless sprayer, brush or roller
    Application Temperature 5°C - 25°C
    Paint Base Solvent
    Size 25



    Shake well before use.
    Do not thin.
    The temperature during application should be between 5°C - 25°C.


    Should not be subjected to extreme temperatures until completely dry.
    Apply in sections for even coverage.
    Apply thin uniform coats.
    Do not allow to puddle.
    Apply with a solvent-resistant airless sprayer, brush or roller.
    Protect adjacent areas and equipment during application.

    Finishing Up

    Touch dry in 1-2 hours.
    Light traffic use in 24 hours.
    Drying times are subject to ambient temperatures.

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