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Stop costly maintenance cycles. K-Seal's professional-grade formula prevents weeds, moss, and oil stains while keeping your driveway looking like new for up to 4 years. Twice as long as cheaper water-based alternatives. Save money with less frequent reapplication and avoid expensive paving replacement.Read More
Due to ADR regs on transport of flammables we can only send 25L drums of solvent product via premium rate special carrier, hence minimum FREE carriage order is 4 x 25L or ring for a quote. Alternatively, you can still collect single 25L drums at our Ulverston or Glasgow trade counters.
phone01229 869100
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Stop Weeds, Oil Stains & Fading - Professional 4-Year Paving Sealer
End the frustrating cycle of weed growth, oil stains, and faded paving. K-Seal's premium solvent-based formula tackles your biggest driveway problems:
✓ STOPS weeds & moss growing between joints
✓ PREVENTS oil stains from cars and BBQs
✓ REVITALISES faded colours for that 'just-laid' look
✓ ELIMINATES white chalky deposits (efflorescence)
Save Money with 4-Year Protection. While cheaper water-based sealers need reapplying every 1-2 years, K-Seal lasts up to 4 years, cutting your maintenance costs in half. Prevent costly paving replacement by protecting your investment now.
Professional-Grade Results
Easy Application, Professional Results apply with roller, brush or sprayer. Two coats recommended for maximum protection. Suitable for block paving, natural stone, and concrete surfaces.
Sizes: 5L, 10L, 25L | Coverage: 5-7m² per litre per coat
Professional installers' choice for lasting driveway protection.
Two primary delivery options for smaller U.K MAINLAND orders (Typically under 100 Kg):
Standard 3-day service: £6.25 plus VAT (Note: Highlands Postcodes may be up to 5 working days)
Next Working Day*: £13.95 plus VAT (Not available to Highlands Postcodes)*Excludes weekends and public holidays
Cut-off time for “Next Working Day” orders to be processed is 12:00 noon. Once your goods have been despatched, you will normally receive a confirmatory e-mail with tracking details so that you can check the progress of your order. Details
When correctly applied to a well-prepared surface, professional-grade block paving sealers like K-Seal typically protect for 3-4 years before a maintenance coat is required. This is significantly longer than water-based alternatives, which often need yearly reapplication. Factors affecting longevity include surface preparation, application technique, weather exposure, and traffic intensity. For driveways with heavy vehicle use, you may need to apply a maintenance coat to high-traffic areas more frequently.
Yes, one of the primary benefits of a quality block paving sealer is that it penetrates and solidifies the jointing sand between paving blocks, which helps prevent weed seeds from germinating and taking root. The sealer creates a barrier that makes it difficult for weeds to establish themselves in the joints. For maximum weed prevention, ensure that joints are adequately filled with kiln-dried sand before application and that the sealer thoroughly penetrates these joints during application.
The ideal conditions for applying block paving sealer are dry, mild days with temperatures between 10-25°C, with no rain forecast for at least 24 hours. Spring and early autumn are typically the best seasons in the UK, as summer can sometimes be too hot (causing the sealer to dry too quickly) and winter too cold or damp. Never apply sealer to damp surfaces or when dew, rain, or cold temperatures are expected, as this can affect adhesion and curing.
We recommend waiting at least 6-8 weeks before sealing for new block paving to allow for initial settlement and for any efflorescence (white salt deposits) to appear and be treated. This waiting period stabilises the paving and allows any manufacturing salts to be naturally washed away. For new concrete paving, wait at least 30 days for the concrete to fully cure before applying sealer. Sealing too early can trap moisture and salts, leading to a cloudy appearance or poor adhesion.
Our solvent-based acrylic formula provides several advantages over water-based sealers: Superior penetration – penetrates deeper into porous surfaces for better protection Longer-lasting protection – typically lasts 3-4 years compared to 1-2 years for water-based sealers Better colour enhancement – provides richer colour enhancement, especially for dark materials like black limestone Excellent oil resistance – creates a barrier that resists vehicle oil spills and BBQ grease All-weather durability – withstands freeze-thaw cycles and UV exposure better than water-based options Water-based sealers are easier to apply and have lower odour, but simply don\'t offer the same level of protection or longevity.
Coverage rates depend on the porosity and type of surface being sealed. As a general guide: Block paving: 4-5 m² per litre per coat Natural stone: 3-4 m² per litre per coat Concrete: 5-6 m² per litre per coat We always recommend applying two coats for optimal protection, so calculate your total area, divide by the appropriate coverage rate, and multiply by two. For example, a 50m² block-paved driveway would require approximately 20-25 litres of sealer for two coats (50 ÷ 4.5 = 11.1 litres per coat × 2 coats = 22.2 litres). It\'s always wise to purchase slightly more than your calculation to ensure you don\'t run short during application.
If the existing sealer is still in reasonable condition with no peeling, flaking, or discolouration, you typically don\'t need to remove it before applying a maintenance coat of K-Seal. Clean the surface thoroughly and apply a fresh coat once dry. However, if the old sealer is failing, showing signs of delamination, or is a different type of sealer (e.g., water-based), it\'s best to remove it thoroughly using a suitable stripper before applying K-Seal. You can always test a small area first to check compatibility if you\'re unsure.
When applied correctly, K-Seal Block & Paving Sealer creates a satin finish that maintains good slip resistance even when wet. However, over-application or applying in very thick layers can create a surface film that might become slippery in wet conditions. To ensure optimal safety, always apply thin, even coats and avoid pooling or puddling of the sealer. Consider adding an anti-slip additive to the final coat for additional traction for areas with steep slopes or steps.
Maintaining sealed block paving is simple: Regularly sweep or blow away leaves, dirt, and debris Clean spills promptly to prevent staining Periodically wash the surface with a mild detergent solution Apply a maintenance coat every 3-4 years or when water no longer beads on the surface Treat any moss or algae growth with a fungicidal wash as soon as it appears Top up any disturbed jointing sand and seal it to maintain joint integrity Avoid using pressure washers on maximum settings, as this can damage the sealer and joints With proper maintenance, your sealed block paving can maintain its appearance and protection for many years.
K-Seal Block & Paving Sealer enhances the natural colours of your paving with a subtle satin finish. The effect is similar to how paving looks when wet – bringing out the depth of colour without appearing glossy or artificial. The enhancement will be more noticeable on porous materials like standard block paving than on dense materials like granite. For a more dramatic "wet look" finish, multiple coats can be applied, or you might consider our Block Star Colour Changing Sealer, which is specifically designed to maximise colour enhancement.
Used many times for customer's drives and patio's, good product with easy use.
Reviewed by Chris Jones
Use this every year and block paving looks good every time
Reviewed by Tom Brown
Bought for a few years on the trot as it is great stuff last year we tried a different brand we did not like it at all so this year we have come back to the kingfisher sealer
Reviewed by Sandee
Excellent product
Reviewed by Dam walsh
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TOP-UP the sand joints & STOP WEEDS with our block paving filler. Unlike kiln dried joint sand Kingfisher Block Fill is a moisture curing grout which will not wash out and effectively inhibits weed growth.
Solvent No2 is a versatile solvent thinner which can be used for thinning a variety of oil based paints, coatings and sealers. Where K-Seal Total or Ultimate Topcoat have suffered moisture contamination, resulting in white staining,
The Total 7 Litre Sprayer is a professional, light weight & solvent resistant, ideal for small scale timber treatment, including small lofts. Compatible with Kingfisher aqueous products including KF-8 range and KF-18.
Has your driveway seen better days? Block Star transforms old, brindle, red, grey & buff block paving from “faded & jaded” to a rich contemporary charcoal shade with a premium satin finish. Easy to apply, Block Star is a pigmented resin sealer NOT a paint, so it won’t peel.
Parabond 600
Kingfisher's Anti-Mould Kit provides everything you need to complete your project - Black Mould Remover – Mould Cure, Thermapaint – Anti-Mould Paint, Harris Taskmasters Mini Roller Set, Sponge, Disposable Gloves Pack of 4
Tired of scrubbing black mould every few weeks? Kingfisher's revolutionary Thermapaint anti-mould paint ends the endless cycle of cleaning, repainting, and repeating. This isn't just another mould-resistant paint; it's the permanent solution to your dampness and mould problems.
