Trade Supplies UK Extreme Seal Patio & Block Paving Sealer – 20L Wet Look

Extreme Seal is a high-concentration patio and block paving sealer designed to give long-lasting protection to outdoor surfaces that take a daily battering from weather, foot traffic, and general grime. Once applied, it forms a tough, durable coating that resists water, oil, fuel, and dirt, helping your driveway, patio, or pathway stay cleaner for longer and significantly cutting down on the time you spend scrubbing and maintaining them. It also actively inhibits moss and lichen growth, which is a genuinely useful feature for anyone who's spent a frustrated afternoon on their knees with a pressure washer.

The sealer delivers a premium wet-look finish that brings out the natural colour of block paving and stone, giving outdoor spaces a fresh, well-kept appearance that tends to impress. It's the kind of result that makes a surface look like it's just been laid, and because the formula penetrates deeply rather than just sitting on top, that finish holds up well over time rather than peeling or flaking away after a season or two.

Application is straightforward — brush, roller, or sprayer all work well — and in reasonable summer conditions you're looking at a drying time of around two to three hours, so you're not left waiting around all day. The 20-litre size makes it a sensible choice for larger driveways and patios, or for anyone doing trade or professional work where coverage and value for money genuinely matter. Just make sure the surface is thoroughly clean and dry before you start for the best results.