The choice between sanded and unsanded tile grout depends entirely on your joint width and tile material. Use sanded grout for joints 18 ππ-inch or wider on floors to prevent shrinkage and cracking. Use unsanded grout for narrow joints ( 116 πππ to 18 ππ-inch) on vertical surfaces or delicate tiles to avoid scratching.
The width of the joints between tiles. Sanded grout is better for spaces larger than 1/8 of an inch because unsanded grout shrinks during the curing process. Use unsanded or epoxy grout for spaces smaller than 1/8 of an inch. Grout is also for creating a nice-looking finish to your tile, so its color is important.
The best grout for Saltillo (terracotta) tile is a heavy-duty, sanded Portland cement grout formulated explicitly for wide joints (typically 1/2 to 114 inches). Standard thin grouts will shrink and crack in these large gaps. Top industry choices include MAPEI 2-1/2 to 1 Saltillo Tile Grout and Custom Building Products Saltillo Grout Mix.
Sanded Grout Should Never Be Used For Joints Smaller Than 1/8 Of An Inch. If you try to use sanded grout for a tiling project using joints that are smaller than 1/8 of an inch, you're going to have some serious problems. It's a bad idea to use sanded grout for precision joints that are smaller than 1/8 of an inch.
Yes, you can use sanded grout in a shower. It is highly recommended for floors and walls with grout lines wider than 18one-eighthππ of an inch because the added sand provides structural durability and prevents cracking. However, it can scratch highly polished stone or glass tiles.
Without a protective sealant, spills, splashes, and everyday use can lead to the penetration of liquids and contaminants into the grout lines. Over time, this absorption can cause grout to become discolored, taking on a dingy and unsightly appearance.
Epoxy grout is widely considered the absolute best option for showers. It is entirely waterproof, highly stain-resistant, and never requires sealing. While more expensive and challenging to apply than traditional cement-based options, its longevity in wet environments is unmatched.
Yes, Dawn dish soap is excellent for cleaning grout because its gentle, grease-cutting formula will not strip sealers or discolor tile. For everyday maintenance, simply mix a dime-sized squirt of Blue Dawn in a 32-oz spray bottle of warm water. For tougher grime, you can upgrade to a deeper-cleaning DIY mixture.
The short answer is no; you cannot simply smear new grout directly over old grout. Because grout is a porous mixture that needs a certain depth to bond, new grout will not stick to the old surface and will crack, flake, and fall out within a few weeks.
When it comes to the absolute best waterproof grout, epoxy grout is the industry standard. Because it is made of resin and hardeners rather than cement, it is 100% water-impermeable, highly resistant to stains, and never requires sealing.
Grouting mistakes make your tile project look less than perfectβdespite all of your hard work. Common errors include adding too much water to the grout mix, holding the grout tools wrong, and neglecting timing.
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.
Epoxy grout: the modern performer
This type of grout is perfect for kitchens, bathrooms, and commercial spaces where spills and moisture are frequent. Pros: Highly durable, stain-resistant, easy to clean, long-lasting.
Uneven subfloors, out-of-plumb walls, or skipping backer boards can all lead to lippage, cracking, or even full-on tile failure. Start with a level surface. Flatness is the goal, ideally about 1/8β over 10' with no noticeable peaks or dips, which takes real effort. And always choose the right underlayment for the job.
Sanded grout can scratch delicate ceramic tiles, particularly those with a highly polished, mirrored, or soft-glaze finish. However, it is perfectly safe for standard, unpolished, or matte-finish ceramic tiles.
As a general rule, you should reseal grout every 1 to 2 years. However, the exact timeline depends heavily on the location and usage of your tile.
Whether you can grout after 12 hours depends entirely on the type of thinset mortar you used. Always refer to the manufacturer's packaging, but use the following timeline as a general rule:
Yes, applying a second coat of grout is entirely possible, but you must take proper precautions to prevent the new layer from chipping or flaking off.
Hotels keep glass shower doors spotless by combining strong commercial cleaning agents with routine maintenance and smart preventative coatings. Because they deal with heavy daily guest turnover, housekeeping staff rely on quick but highly effective strategies to prevent soap scum and hard water buildup.
Just a few more important points: As the grout can absorb the soap as well as a stain, do not clean with oil or wax based cleaners (Murphy's Oil soap, Pine Sol, etc.). These products will leave a waxy or oily film in the grout. Even good alkaline cleaners, if not properly rinsed, will leave a sticky soap film.
Hydrogen peroxide is a mild bleaching agent, so it can help to lighten stains and kill mold or mildew. Allow the hydrogen peroxide to sit on the grout for about 10 minutes. This gives it time to penetrate the grout and break down the stains. Use your grout brush or toothbrush to scrub the grout lines.
One of the most frequent grouting mistakes is improper mixing and application. Grout is a precise material, and getting this step right is crucial for its strength and adhesion. Incorrect Water-to-Grout Ratio: Adding too much or too little water can significantly weaken the grout.
SINGLE COMPONENT GROUT
It shares many of the benefits of epoxy grout: it has excellent color consistency, doesn't need to be sealed, resistant to breakage and chemicals, resists mold and mildew, is stain resistant, and doesn't effloresce.
Grout is porous and readily absorbs water, making it an excellent breeding ground for mold. Moisture can come from various sources, such as spills, humidity, condensation, or leaks in the surrounding area, including showers, bathrooms, and kitchens.