They have siliconized acrylic silicone sanded unsanded matt or gloss.
Bathtub grout or caulk.
You can get any colour caulk you need to match any grout out there from color rite dot com.
Clean the bare tiles and grout once the old caulk is gone remove any loose grout between the walls and the tub or shower floor.
But they have distinctly different personalities.
Grout which is a cement based material is great for filling the spaces between tiles.
In those cases you will likely apply some caulk in places where you also have grout.
Just give them the grout mfg name and colour or number.
I always get silicone for showers.
A caulk is nothing but a mixture of latex and silicone in definite proportions and is used to create bonding between an array of material like ceramic metal wood and glass.
Caulk is a flexible.
Caulk can be color matched to match the existing grout so it can be difficult to distinguish it from the grout.
Treat any mold in the grout along the wall tub gap with a mold killing product.
Caulk made of pure silicone or siliconized latex acrylic i e latex or acrylic caulk with added silicone adheres well to common shower and tub materials including porcelain ceramic stone.
But it isn t flexible enough to stay intact where a shower pan or tub meets surrounding walls.
Caulk is usually applied around the perimeter of the bathtub where your tiles meet your tub.
The best caulks for tubs sinks or shower stalls come in tubes labeled tub and tile or kitchen and bath these are either acrylic latex or silicone compounds that have been chemically tweaked to resist mildew and to stick to smooth nonporous surfaces.
Caulk also comes in sanded and non sanded textures to match the existing texture of the grout.
Scrub the grout and then rinse off the mold killer with water and let it dry.
Use a hair.
Grout is a masonry product that comes as a dry powder in a bag.
That said a handyman wouldn t recommend sealing cracked grout by placing a line of caulk over it.