10 Best Grout Sealers 2025 in the UK

The Polar Tile & Grout Sealer Clear Spray is designed to provide instant waterproof protection to both indoor and outdoor tiled surfaces. Its clear finish ensures that the appearance of grout remains unchanged, delivering non-yellowing protection that helps in maintaining the cleanliness and freshness of tiles. This sealer is versatile, suitable for various surfaces including stone masonry, shower walls, and kitchen countertops.

It offers durable water and stain resistance, making it a reliable choice for protecting bathroom and kitchen tiles from common issues like limescale, grease, and dirt. One of the standout features is its easy application process, ideal for DIY enthusiasts. The spray can covers up to 2m², and any residue can be cleaned with a cloth, which adds to its user-friendly nature. Additionally, its quick drying time—touch dry in 15-30 minutes and fully hardened in 24 hours—means you can get back to using your tiled areas with minimal delay.

While it offers long-lasting performance, optimal results require applying two coats, which could be seen as a minor inconvenience to some users. The product's robust protection against daily wear and tear is notable, but users should be aware that coverage per can is limited, potentially necessitating multiple purchases for larger areas. If you're looking for a reliable grout sealer with easy application and solid protection, this product might be a good fit for your needs.

The LTP MATTSTONE Sealer is an impregnating stone sealer suitable for a variety of surfaces including travertine, stone, sandstone, slate, marble, terracotta, quarry tiles, brick, and paving. This product is ideal for both interior and exterior use, offering a natural, matt finish that enhances the color and texture of tiles. One of its key strengths is its ability to repel water, oil, and grease, which helps protect against staining. It also allows surfaces to breathe, which can be beneficial for maintaining the integrity of the material over time.

Additionally, the sealer is noted for its ease of application, which can be a significant advantage for DIY users. However, it is important to consider the drying time and the need for multiple applications, especially on high porosity floors, which may require more sealer and effort to achieve the desired protection. At 500ml, the coverage may be limited depending on the size of the area you need to treat. Weighing just 520 grams, it is lightweight and easy to handle.

With a high customer rating of 4.4 out of 5 stars, it is well-regarded by users for its performance and reliability. Despite its strengths, the key consideration is to ensure you have enough product to cover your space, as larger areas may require more than one bottle. This sealer is best suited for those looking for a durable, easy-to-apply solution to protect and enhance their stone surfaces.

The Polar Tile & Grout Clear Sealer Spray offers convenient protection for a variety of surfaces, making it suitable for both indoor and outdoor use. It's designed to be DIY-friendly with an easy spray application, covering up to 2m² with one 400ml can. This can be quite efficient for smaller areas but might require multiple cans for larger projects.

When it comes to water resistance, the sealer provides an instant waterproof barrier, which is ideal for bathroom and kitchen areas, protecting against limescale, stains, and dirt. The crystal-clear finish ensures that the grout's appearance remains unchanged, which is a positive for preserving aesthetic integrity. Drying time is fairly quick, with a touch-dry time of 15-30 minutes, and it becomes recoatable after 20 minutes. For those in a hurry, this can be a beneficial feature, though full hardening takes up to 24 hours, which could delay usage of the area.

The product's durability is commendable, offering long-lasting protection against daily wear and tear, though optimal results require at least two coats. On the downside, while the spray is versatile, it may not be as effective on all types of surfaces as suggested, especially those with intricate textures. Additionally, the coverage may seem limited for larger spaces, potentially making it less economical for extensive projects. Users who seek a simple, efficient solution for minor repairs and touch-ups might find this product quite advantageous, especially given its decent water resistance and ease of application.