Lay out your tiles first to determine how much space needs to be sealed between each row.
Shower floor tile grout lines.
Allow the paste to set for a few minutes to work its magic and then give the grout lines one more agitating scrub for good measure.
Grout lines for wall tiles.
The best type of grout for your ceramic bathroom tiles depends largely on the size and design of the tiles in question.
Epoxy grout is the best choice for showers because is water and stain resistant and requires no sealing.
Small tiles such as the 4 inch by 4 inch style commonly used on bathroom and kitchen walls often are self spacing.
Polymer additives ensure flexibility and color quality.
If the space is less than 1 8 inch you should use unsanded grout.
This might include any grout along shelves corners and floor tiles or the grout and tile that surrounds the shower drain.
Spaces larger than 1 8 inch need sanded grout.
There is less irregularity with rectified tiles so less spacing is needed between each piece.
They have small protrusions called lugs that fit against adjoining tiles and create an automatic space for grout normally 1 32 to 1 16 inch wide.
When installing tiles in a shower the grout is an ordinary portland cement mixed with powdered pigments and water.
A tight 1 8 grout space will allow the pattern to flow nicely from one tile to the next.