10 Best Granite Sealers 2026 in the United States

The STONETECH Bulletproof Sealer is a water-based, penetrating sealer designed to protect porous natural stones, tile, masonry, and grout. It offers strong stain resistance against both oil and water-based spots, making it a solid choice for keeping stone surfaces clean and well-protected. Because it penetrates deeply and is breathable, it preserves the natural appearance without creating a shiny or artificial finish. The water-based formula is low in odor and non-flammable, which makes it safer and more pleasant to apply indoors or outdoors. Its protection lasts well under normal cleaning conditions, showing good durability for everyday use.

Application is fairly straightforward since it’s a liquid, though precise directions should be followed for best results. One slight downside is that it’s rated as water-resistant rather than fully waterproof, so it might need reapplication in very wet or high-use areas over time. It’s also best suited for porous materials like terracotta and tile, so it may not be ideal if you’re sealing very smooth or dense stone. This sealer serves as a dependable, professional-grade option for those needing solid stain and water protection on porous stone surfaces, with an easy and environmentally friendly application process.

The Wet Look Natural Stone Sealer by Black Diamond Stoneworks is a versatile and durable sealer that provides a lasting glossy finish. It's especially effective for enhancing the appearance of various surfaces like pavers, slate, and driveways, both indoors and outdoors. The sealer is designed to deliver a 'wet look,' which amplifies the natural beauty of the stone without significantly darkening it post-application. This makes it suitable for those who wish to maintain a natural appearance while adding a layer of protection.

This sealer stands out due to its ease of application, as it can be applied using a spray, brush, or roller, catering to both professionals and DIY enthusiasts. It's also noteworthy for its resistance to chemicals, making it ideal for protecting surfaces in areas exposed to potential spills or harsh conditions. Additionally, it's manufactured in the USA, which may appeal to those who prefer domestically produced goods.

In terms of drawbacks, users might find that the 'wet look' finish might not be to everyone's taste, especially if a completely natural, matte finish is desired. Furthermore, the instruction to test a small area beforehand implies that the sealer may not be universally compatible with all stone types, which could require careful consideration and potentially additional steps in the application process. For those seeking an easy-to-apply, glossy finish that enhances and protects stone surfaces, this sealer could be a great choice. However, it's essential to ensure compatibility with your specific stone type to avoid unintended results.

The Weiman Complete Countertop Clean & Protect Kit is designed to clean, polish, and seal natural stone surfaces like granite, marble, and quartz, making it a versatile choice if you want an all-in-one solution. It comes with two sprays: one to clean and shine, and another to seal and protect. This setup works well for daily or weekly maintenance, which is convenient for keeping stone looking fresh without extra hassle. The sealer forms a protective barrier that helps prevent stains from grease, water, and soil, which is important for maintaining the stone’s appearance over time.

Since it is a spray, applying the sealer is straightforward and less messy compared to some other products that require wiping or brushing. It is meant for non-porous sealed surfaces, so it’s not ideal for unsealed or very porous stone types. The finish leaves a polished look, enhancing the stone’s natural beauty without a dull or overly shiny effect. One limitation is that it may need regular reapplication to maintain protection, especially in high-use areas like kitchen countertops.

While it offers good water resistance, very heavy or prolonged exposure to liquids might still require extra care. This kit is a solid option for homeowners who want to protect and maintain their stone surfaces easily, with a product suitable for multiple stone types and surfaces around the kitchen and bathroom.