You can apply the grout sealer directly onto the grout this way.
Tile stone and grout sealer how to apply.
Use the spray bottle to apply a thin coating of the sealer all over the surface of the tile.
Make sure you cover every area as evenly as you can including the corners and edges of the tile.
In some cases the sealer will also come with an applicator that you can use.
Apply using a pump sprayer paint pad applicator lambswool applicator sponge or brush.
Wait a minimum of 48 hours before grouting.
Sealing the tile before grouting will make grout removal much easier.
Allow it to penetrate for up to 5 minutes if surface is drying within 5 minutes apply more sealer to keep surface.
Apply a single coat of sealer according to directions after tile has been bonded for a minimum of 24 hours or apply to front face of tile before installation.
If you are using the applicator bottle.
Apply with even strokes until the entire area is covered with the sealer.
Porous tile and stone can be stained by grout during installation.
Always test a small area first to ensure satisfactory results.
Step 4 dry.
Hold the bottle 6 inches 15 cm from the surface and spray the tile.
The spray on variety is the most common although some types can be applied with a sponge or brush.
Be sure to properly cover the whole entire grout gap from tile edge to tile edge.
Apply your sealer to the lines and joints of the grout.