When it comes to keeping your driveway, patio, or paved surfaces looking pristine and protected, choosing the right block paving sealer is essential. Whether you’re a homeowner, contractor, or facilities manager, understanding how to seal block paving - and why Extreme Seal Block Paving Sealer stands out - can make all the difference in durability, appearance, and long-term maintenance.
What Is Block Paving Sealer and Why Use It?
Block paving sealer, also known as patio sealer or driveway sealant, is a protective coating applied to paved surfaces. Its main purposes are:
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Locking in jointing sand to stabilize pavers
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Preventing weed growth and rutting
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Repelling oil, water, and stains
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Enhancing surface appearance with options like wet look or matt finishes
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Extending the life of your paving by shielding against UV rays, de-icing salts, and tyre marks
Sealing block paving is a proven way to reduce maintenance, prevent moss and algae, and keep your surfaces looking fresh for years.
Extreme Seal Block Paving Sealer: Key Features & Benefits
Extreme Seal Block Paving Sealer from Trade Supplies UK is a high-performance, solvent-borne polyurethane resin designed for both trade and DIY applications. Here’s why it’s a top choice for anyone searching for the best block paving sealer, patio sealant, or driveway sealcoating:
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Heavy-Duty Polyurethane Blend: Offers robust protection for block paving, concrete setts, and porous stone, ensuring long-lasting results.
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Sand Hardening & Weed Resistance: Binds jointing sand to stop weed growth and prevent wash-out, rutting, and movement1.
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Finish Options: Choose between a subtle matt look or a rich wet look for colour enhancement. Both finishes are UV-stable to prevent yellowing.
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Anti-Slip Option: Add the supplied silica grit for a micro-textured, anti-slip surface—ideal for ramps, commercial walkways, or wet zones.
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Fast Drying & Easy Application: Touch dry in 3–4 hours, with two-coat same-day application possible. Surfaces can be reopened quickly.
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Resistant to Oil, Diesel, and Tyre Marks: The tough polyurethane matrix shrugs off common stains and marks, perfect for high-traffic driveways and patios.
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Made in the UK to ISO 9001 Standards: Quality assured for peace of mind.
Where Can You Use Extreme Seal Block Paving Sealer?
This versatile paving sealer is suitable for:
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Interlocking concrete block paving
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Standard concrete pavers
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Porous clay pavers (test a small area first)
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Sandstone and concrete flags
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Imprinted or stamped concrete
Note: Not recommended for dense natural stone or asphalt.
How to Apply Block Paving Sealer for Best Results
1. Preparation
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Jet-wash the surface to remove dirt, algae, and efflorescence.
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Resand joints so they’re flush, brushing off excess.
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Allow paving to dry for at least 48 hours (moisture content <4%) before sealing.
2. Priming (For Porous Surfaces)
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On very absorbent blocks or clay pavers, mist a thinned 10% first pass to reduce soak-in.
3. Mixing
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Stir the sealer for 2 minutes.
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For an anti-slip finish, slowly add the silica grit while stirring until fully dispersed.
4. Application
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Apply the first coat with a solvent-resistant roller, brush, or pump sprayer in a thin, even film.
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After 4–6 hours, apply a second coat in a cross-direction. For maximum wet look gloss, a third clear coat can be added.
5. Curing
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Protect from rain for at least 6 hours.
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Allow 12 hours for light foot traffic and 48 hours for vehicles.
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Full chemical cure and maximum durability are achieved in 7 days.
Frequently Asked Questions: Block Paving Sealer & Patio Sealant
Will Extreme Seal darken my paving?
The Wet Look version enriches colour and adds gloss, while the Matt Look offers minimal darkening. Always test on a small area first.
Is anti-slip necessary for driveways?
Not essential for flat driveways, but highly recommended for ramps, slopes, or wet areas to improve traction.
How soon after new paving can I seal?
Wait at least 4 weeks after laying new block paving to allow efflorescence to surface and be cleaned.
Does this sealer prevent weed growth?
Yes, it locks sand joints to resist weed germination, but annual inspection and touch-ups are recommended for best results.
Will it resist hot-tyre pick-up and oil stains?
Yes, the fully cured polyurethane formula resists tyre marks up to ~60°C and repels oil, diesel, and de-icing salts.
How often should I reseal my driveway or patio?
Every 3–4 years for residential use; 1–2 years for commercial or high-traffic areas.
Is the surface slippery after sealing?
Wet Look adds sheen; use the anti-slip additive for safety on inclined or wet surfaces.
What safety gear is recommended during application?
Wear a solvent respirator, nitrile gloves, goggles, and ensure proper ventilation.
Why Choose Extreme Seal Over Other Paving Sealers?
When compared to alternatives like Resiblock, Sika, Smartseal, or Bostik, Extreme Seal Block Paving Sealer offers:
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Superior polyurethane protection
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Flexible finish options (including wet look patio sealer)
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UK manufacturing and ISO 9001 quality
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Fast drying and easy application for both DIY and trade users
Conclusion: The Best Block Paving Sealer for Lasting Results
Sealing block paving is a smart investment in your property’s appearance and longevity. Extreme Seal Block Paving Sealer provides a professional-grade solution for driveways, patios, and paved surfaces, combining ease of use, high performance, and flexible finish options. Whether you’re searching for the best patio sealer, a wet look block paving sealant, or a heavy-duty driveway sealer, Extreme Seal delivers lasting protection and curb appeal.
Ready to transform your paving?
Explore finish options and order your Extreme Seal Block Paving Sealer today for fast, free UK delivery and expert support from the Trade Supplies UK team.
