For some areas of a tiling job caulking tile is more suitable than tile
grout. Wherever two sections of tile meet this a good place to use
It could be the corner where two walls meet, A kitchen countertop tile that joints kitchen backsplash tiles or the joints between bathroom tile and the tub. It can even be the intersection of the floor meeting the wall.
* When it comes to the bathroom caulking around a tub surround or the bottom of the toilet you'll need a silicone caulk that repels mold and mildew.
* Ceramic Tiles and Stone tiles tend to expand and contract with the changes in temperatures. It's just very slight movement, but if not given a little flexibility, it can cause the tiles to crack.
* So after installing kitchen countertop tile and backsplash tiles, a new floor tile installation or wall tile installation don't grout the areas where the tiles meet. Instead, fill these joints with a silicone caulk.
* To make it more appealing choose a caulk that matches your tile grout.
* You'll need to decide on either to grout your tiles first or to caulk the joints. Because you'll need to allow for one to cure before applying the other.
Using a utility knife cut the nozzle of the tube to the width of the joint, and at a 45 degree angle.
The closer you cut to the top of the nozzle the thinner your bead of caulk will be.
Some caulking tubes require you to break their seal before you can begin caulking. Sticking a long nail down the nozzle should do the trick.
If this is your first time using a caulk gun, you may want to practice on scrap.
Squeeze your caulk gun trigger until caulk starts to come out. Push down on the release button to stop the flow. Place the caulk gun's nozzle up against the area to be caulked, and squeeze the trigger again.
Move the nozzle along the joint as you continue squeezing the trigger.
If you stop in the middle of caulking the joint, the caulk will overrun. So keep moving.
Once you have reached the end of the joint, Release the trigger, to prevent the caulk from continuing to flow out of the tube.
Dampen a rag with water, then place the rag over your finger and run it along your caulk line. Using light pressure press the caulk into the joint and smooth the surface. When your rag gets filled with caulk simply move your finger to a different area of the rag.
Go here for removing and replacing old mildewed caulk from around a tub or toilet