Replacing Grout can make a tiled surface that looks old and dingy look remarkably new again!
If your wall tile installation, countertop or floor tile installation is relatively new but has a few holes or gaps in the tile grouting lines, There's no need to replace all the tile grout.
You only need to patch the holes with new tile grout that's the same color as the rest of the grout lines.
But you'll want to do it sooner rather than later because moisture will inevitably make its way through the holes and gaps and behind your tiles, And that's not okay! Because over time moisture will damage the substrate underneath.
* Old tile grout goes bad over time, so if you find an old package of tile grout do not use it, But instead use the packaging to get the brand and the color information, so you can purchase the new grout color to match that of your current wall tile installation, countertop or floor tile installation.
* Be sure to ventilate the room, wear your respirator and remove all of your belongings from the room. Also seal the doorway to the room with plastic. It will help in keeping the dust contained and out of your lungs while sawing out the old grout.
*When you're grouting tile with 1/8 or wider tile grout lines use sanded tile grout. Grouting tile with narrower grout lines will require a sanded tile grout.
* There are also acid based products that will remove tiling grout, But thy can't be used on tiles that are susceptible to acids such as, Limestone, Marble, and Unglazed Ceramics. But It is safe to use on Porcelain and Glazed Ceramics.
The acid actually eats away the grout, and the longer you leave it on the further down it removes the grout, leaving you with nice clean grout lines to install your new tile grout.
Just ask your tile retailer for the best product to use for your type of tiles, and then run a simple test on an inconspicuous spot on the tile to ensure it won't cause any damage.
* Spray the solution over the discrete area of tiled surface, and wait for the allotted time as specified. Then apply the neutralizer. If all seems well, it's safe to use.
Be sure to use the exact same tile grout color that was used for the original floor tile installation.
Even though it's the same grout color, it won't look the same as that of the rest of the wall tile installation, countertop or floor tile installation, because the old tile grout has darkened over time. It's a good idea to use a grout cleaning product to refresh all of the existing grout. So you can better match the new grout to the old grout.
When grouting tile for holes and gaps, you can use your finger to press the tile grout right into the places where needed. Then wipe away the excess tile grout, and allow the tile grout to dry. If you later find any dried grout on the tiles, clean it up with a wet sponge.
If your old tile is coming loose over vast areas of your existing floor tile installation, or your tile grout is stained beyond repair, replacing grout is your best way to go. When replacing grout, you will first need to remove the old tile grout. And The fastest way to remove old tile grout is to use a rotary cutter loaded with a masonry cutting bit.
Use a grout bit for your rotary tool that is specially designed to remove tile grout without damaging the tile.
You will still need to be careful not to touch the tile with the bit of the rotary tool, but in most cases, if you slightly graze the tile you won't damage it. There's also an attachment available for the rotary tool that helps to center it in the grout lines.
Another tile grout removal tool you can use is a grout saw. It's a hand tool that's cheaper to buy but takes a lot longer to get the job done.
For a wall tile installation, countertop or floor tile installation consisting of tiny grout lines like those of self-spacing tiles or tiles that are butted close together, Just use a utility knife to remove the grout.
Once you've removed all of your tile grout, vacuum away all of the dust, and wipe the entire area with a wet sponge. And then You are now ready for regrouting your tiles.