No, you generally do not need to seal porcelain tiles. Because porcelain is fired at extremely high temperatures, it is highly dense and virtually non-porous. As a result, liquids and stains cannot easily penetrate the surface.
Generally, nothing happens if you don't seal porcelain tiles. Because porcelain is highly dense and non-porous, it does not absorb liquids or stains. However, leaving certain unglazed, polished, or textured porcelain tiles unsealed can make them vulnerable to microscopic staining and dirt accumulation.
Most porcelain tile does not need to be sealed. The majority of porcelain used in homes is glazed, meaning it has a tough, baked-on, non-porous finish that naturally repels water and stains.
Builders often skip sealing grout to cut costs, save time, and avoid returning to the job site. Additionally, many modern polymer-modified grouts are stain-resistant, and sealing un-cured grout can trap moisture. Some installers even use it as an upsell or exclude it because sealing can leave a hazy film on certain tiles.
How long does porcelain sealer last? Properly applied topical sealers can last for up to 5 years on your floor before needing to be reapplied.
Things to avoid
Yes, you can absolutely use Dawn dish soap on porcelain tile. It is a mild, grease-cutting detergent that is highly effective and safe for both glazed and unglazed porcelain.
Sealing grout creates a protective, stain-resistant barrier, but it comes with several disadvantages. It requires frequent reapplication, traps moisture if applied incorrectly, is not foolproof against staining, and adds upfront costs.
Professional grout sealing costs between $𝟏.𝟓𝟎 and $𝟒.𝟎𝟎 per square foot for labor and materials, or roughly $𝟏𝟐𝟓 to $𝟑𝟎𝟎 for a standard bathroom or kitchen area. If you DIY, you can seal the grout yourself for as little as $𝟎.𝟐𝟎 to $𝟎.𝟓𝟎 per square foot in supplies.
Technically, you can regrout over old grout, but it is not recommended to just smear new grout on top. Doing so will likely result in a weak bond, leading to cracking, peeling, and an uneven finish.
Yes, you can use Swiffer Wet cloths or a Swiffer WetJet on porcelain tile. They are convenient for quickly picking up surface dirt, but keep in mind that Swiffer solutions can leave a faint, hazy residue on shiny tile and may not deep-clean grout lines.
Sealing Porcelain Tiles with a Natural Look Penetrating Sealer: Good: Aqua Mix® Penetrating Sealer. Better: Aqua Mix® Pro-Solv® Best: Aqua Mix® Sealer's Choice® Gold – Rapid Cure or Aqua Mix® Ultra-Solv®
To quickly tell the ceramic and porcelain apart, flip the tile over. Ceramic typically has a red or brown clay body on the back, while porcelain has a denser, white or light gray clay body. Additionally, porcelain is heavier, smoother, and absorbs significantly less water than porous ceramic.
Most porcelain tile does not need to be sealed. The majority of porcelain used in homes is glazed, meaning it has a tough, baked-on, non-porous finish that naturally repels water and stains.
The majority of porcelain and ceramic tiles on the market are glazed and don't require sealing, and glass tile doesn't need to be sealed unless it has an uneven or beveled surface.
While incredibly durable and water-resistant, porcelain tiles have a few notable drawbacks. The primary disadvantages include high upfront costs, a cold and rigid surface that is uncomfortable for standing, and complex, expensive installation due to the material's extreme density.
Builders often skip sealing grout to cut costs, save time, and avoid returning to the job site. Additionally, many modern polymer-modified grouts are stain-resistant, and sealing un-cured grout can trap moisture. Some installers even use it as an upsell or exclude it because sealing can leave a hazy film on certain tiles.
Cost of Materials
The price of asphalt fluctuates, but homeowners can expect to spend between $2.50 and $4.00 per square foot, according to a report. Sealant cost varies depending on the product's quality and the driveway's size, averaging between $0.15 to $0.25 per square foot.
Now you know how to seal grout, you can keep your tiles in perfect condition. We suggest repeating the sealing process about once a year, though highly frequented areas like floor tiles or showers may require more frequent makeovers. Just keep an eye on the grout, and take action as soon as you notice any issues.
The best overall grout sealer is Miracle Sealants 511 Impregnator. It is a highly penetrative, solvent-based sealer that absorbs deep into porous cementitious grout lines to form an invisible, oil-and-water-resistant barrier without changing the natural look of your tile or grout.
Epoxy and advanced urethane/acrylic grouts do not require sealing. Unlike porous cement-based grouts, these synthetic options are completely waterproof, highly stain-resistant, and chemically dense, making them ideal for high-moisture areas like showers, backsplashes, and high-traffic floors.
Yes, you absolutely must clean your grout before sealing. If you don't, the sealer will lock in dirt, stains, and mildew, making those imperfections permanent.
Yes, you can use Murphy’s Oil Soap on tile floors. It is a gentle, natural-ingredient cleaner that safely lifts dirt and grime without damaging the ceramic or porcelain tiles.
The ultimate lazy shower hack is the "Shower and Soak" method. Mix equal parts distilled white vinegar and original blue Dawn dish soap in a soap-dispensing dish brush. Keep it in your shower, and while your hair conditioner sits, give the walls a quick scrub. Rinse as you shower for a perpetually clean bathroom.
If your porcelain tiles have hard water or soap scum buildup, it's time for a deep clean. For the best clean, you can use either a specialized tile cleaner or a mixture of water and white vinegar. Generously spray the solution on walls, floor and fixtures, focusing on areas with soap scum, mildew or hard water stains.