Caulk is silicone, acrylic, or latex based, which is flexible and can help absorb movement, whereas grout can crack. Caulk is used to waterproof joints for space like bath tubs, showers, windows etc. Caulk is strong enough to adhere to tile surfaces without crevices.
Don’t use bleach on colored grout, bleach will discolor the grout. Don’t clean granite or natural stone with household cleaners. When cleaning with acids such as vinegar, be aware that grout often contains cement which is alkaline.
If you want to be sure, yes, you have to dig all the grout out first. Grout bonds mostly to the tiles, less so to itself. Typically grout takes a few weeks to fully cure, but is ready to seal after 2 or 3 days. That says to me that you might still get the
Although it may look as if it has no grout to keep it firmly in place as traditional and small tiles do, a seamless tile installation still needs the security of a layer of grout. Granite tiles offer a slightly less expensive alternative to a giant and cumbersome slab of the popular decorative stone. Sep
Start with a mild cleaning solution. If your grout lines are really grimy, you may need to use oxygen bleach. However, chlorine bleach should generally be avoided. Chlorine bleach will discolor your colored grout, so you should leave it in the cupboard. Instead, choose either hydrogen peroxide or oxygen bleach.
It is very easy to apply tile grout sealer to your backsplash in an afternoon. The process only requires a minimum of tools, most of which you probably already have or can easily purchase at a hardware store. First be sure the tile is completely clean so the grout sealer will stick.
Grout the pennies just as you would any other tile. Mix the powder grout with water according to the package instructions, and then apply into the seams using a grout float. Go slowly and make sure you go at a 45 degree angle so you don’t pull the grout out from between the pennies.
When grouting the backsplash tiles, leave the gap between the granite and the tiles empty. Grout is inflexible and will crack if pressure from the counter is placed against it. Instead of grout, fill the expansion joint between the tiles and the countertop with a latex caulk that matches the color of the grout.
Grout is the better choice for wet areas. Though grout is more porous than caulk, it’s best for tiled shower walls and floors. This is largely because of the way grout binds with backer board, the concrete material placed behind tiles.