Why Seal Grout?

Introduction to Grout Sealing

Welcome to Tilers Place, where our mission is to demystify the art and science of tiling for DIY enthusiasts and pros alike. One question that crops up time and again is about the best grout sealer. With my 25 years on the tools, I’ve seen my fair share of sealers, and I’m here to share that wisdom with you. Grout sealing might not be the most glamorous topic, but get it right, and it’s a game changer for the longevity and appearance of your tiling work.

Why Seal Grout?

First off, why do we even bother sealing grout? Grout is porous, a trait that can be a double-edged sword. On one hand, it’s great for absorbing adhesive forces, keeping tiles in place. On the flip side, it also means it can soak up stains and harbor mold. Sealing grout helps repel moisture and stains, extending the life and beauty of your tiling.

Types of Grout Sealers

Not all sealers are created equal, and knowing the difference is crucial to selecting the best grout sealer for your job. Let’s dive into the two main types you’ll encounter.

Water-Based Sealers

Water-based sealers have come a long way in terms of technology and performance. They’re easier on the environment, lower in VOCs, and generally safer to work with. Plus, they’re quite effective at penetrating porous grout for lasting protection.

Solvent-Based Sealers

Solvent-based options can dive deeper into denser materials, thanks to their smaller molecular structure. They’ve been the go-to for natural stone but aren’t always necessary or the best choice for grout sealing.

Choosing the Right Sealer

Finding the best grout sealer depends largely on your specific situation. For most indoor residential applications, a water-based sealer will do the trick, offering ease of use and ample protection. Where you’re dealing with denser stones or outdoor conditions, a solvent-based product might be worth considering.

Application Tips

Applying grout sealer isn’t rocket science, but a few tips can ensure you get the best results. Always clean the area thoroughly before application, and give the sealer ample time to cure before getting the area wet. Test a small, inconspicuous area first to ensure the sealer doesn’t affect the color of your grout or tile.

My Experience with Sealers

Over my years in tiling, I’ve worked with just about every sealer out there. While I’ve seen great results from many products, my go-to recommendation often falls on quality water-based sealers for their balance of performance, ease of use, and safety. That said, every job is unique, and I’ve had cases where a solvent-based sealer was the only way to go.

One memorable project involved a beautiful, but highly porous, natural stone that was being laid in a high-moisture area. Here, a top-tier solvent-based sealer was paramount for deep penetration and lasting protection, despite the complicated application and longer curing time.

Top Sealer Recommendations

  • AquaMix Sealers Choice Gold – A reliable water-based choice that balances performance and ease of use.

  • DryTreat Stainproof – Ideal for those tougher jobs where you need deep penetration and serious protection.

  • Miracle 511 Impregnator – A solvent-based option that’s great when you need something a bit stronger.


How often should I reseal my grout?

It varies based on traffic and exposure, but a good rule of thumb is every 12 to 24 months for heavily used areas. Lighter use areas might go longer between treatments.

Is sealer safe for all types of tiles?

Most sealers are safe for most tiles, but always check the manufacturer’s recommendations and test a small area first. Some sealers can alter the appearance of certain tiles.


Choosing the best grout sealer isn’t about finding the most expensive product on the market; it’s about understanding your needs and finding a product that meets them. With the right research and preparation, you can protect your tiling work for years to come. Remember, the best tool in your kit is knowledge, so keep learning, keep experimenting, and don’t be afraid to reach out to the community with questions or for advice. Happy tiling from all of us at Tilers Place!

Application Tips

What is the best product to seal grout?

Choosing the best grout sealer really depends on your specific project needs. However, if we’re talking about a great all-rounder, water-based sealers like AquaMix Sealer’s Choice Gold have consistently proven themselves. They strike an excellent balance between performance, ease of use, and environmental safety. Of course, there are situations where a solvent-based sealer, such as Miracle 511 Impregnator, might be necessary — particularly with denser stones or in high-moisture areas. But for most indoor residential tiling, a quality water-based sealer will do the job brilliantly.

How do professionals seal grout?

Professionals seal grout with a meticulous eye for detail, ensuring the surface is thoroughly clean and dry before application. We typically apply sealer using a sponge, brush, or specially designed applicator bottle to ensure precision and avoid waste. Depending on the sealer type, we may need to apply multiple coats, allowing adequate drying time between each. A key professional trick is testing the sealer on a hidden section of grout first. This ensures there’s no discoloration or adverse reaction, guaranteeing a flawless finish.

Is it better to spray or brush grout sealer?

The choice between spraying or brushing on grout sealer comes down to the specific requirements of your project and personal preference. Spraying can be quicker and cover large areas evenly, making it ideal for vast, open surfaces. On the other hand, brushing gives you more control, ensuring thorough coverage and allowing you to avoid getting sealer on the tile surface, which can be especially useful in detailed or intricate tile work. Both methods have their merits, but ultimately, the key is ensuring the grout is fully covered for maximum protection.

Can you permanently seal grout?

While the idea of permanently sealing grout is appealing, in reality, no sealer lasts forever. High-quality sealers can significantly extend the life and appearance of your grout, offering protection anywhere from two to five years, and sometimes even longer under optimal conditions. However, regular maintenance resealing is essential to sustain the protective barrier against moisture and dirt. Think of it less as a one-time job and more as an ongoing part of your tiling’s health regimen.

What should you consider when choosing a grout sealer?

Choosing the right grout sealer involves several key considerations. First and foremost, think about the area where the tile is installed. Is it a high moisture area like a bathroom or a high-traffic area like a kitchen floor? This will greatly influence the type of sealer you need. Secondly, consider the type of tile and grout you’re working with – porous materials might require a different sealer than less porous ones. Lastly, personal preference and ease of application play a role; whether you prefer water-based sealers for their eco-friendliness or solvent-based for their deep penetrating qualities. Remember, the best sealer is the one that fits your specific needs while providing lasting protection and maintaining the aesthetic appeal of your tiling work.


  • AquaMix – AquaMix Sealers Choice Gold is a reliable water-based choice that balances performance and ease of use.

  • DryTreat – DryTreat Stainproof is ideal for tougher jobs where deep penetration and serious protection are needed.

  • Miracle Sealants – Miracle 511 Impregnator is a solvent-based option great for when something stronger is required.