Scrub the surface of the slate tile with a generous amount of water and a nylon scrub sponge.
Cleaning grout off slate tiles.
A wire brush attachment for a hand drill cuts the time in half and gives the slate a clean surface in no time.
Use another clean sponge to rinse the scrubbed slate tiles with.
How to remove grout haze from a slate floor 1.
There are essentially only three things that can be done to remove the hardened grout from your wall or floor tiles.
Don t worry you can bring back the brightness of the grout by using a 50 50 solution of water and hydrogen peroxide.
Work on three or four.
Tile and stone sealers will work sometimes but not always.
If it doesn t work chances are the grout haze isn t removable.
Pick up the dirty water with a clean grout sponge.
Be careful if you have a slate floor with colored grout as this bleach solution could damage the color of that grout for tougher stains mix together peroxide and baking soda into a bubbly.
The methods ahead outline how to remove grout haze using.
Use the grout haze remover and brush in a small typically 3 x 3 area.
I was doing that at the beginning but i was getting really annoyed because after placing each tile and positioning it perfectly and adding the spacers the tile would move out of place every time i sponged it off.
Water and cheesecloth a rubber grout float diluted vinegar on porcelain or ceramic tile only and a nylon scrub pad and a commercial grout haze remover.
Cleaning the slate is easy but now you have to clean that grout.
Porous tiles especially a stone such as slate need up to two or three applications of a special grout release.
Safety tips tricks.
It s not always effective on slate however.
The thin set instructions say to sponge off any mortar from the tops of the tiles immediately or at least as soon as possible.
The cleaner alongside the brush and some good elbow grease should be able to take care of the unwanted grout on your slate tiles.
Scrape scratch and rub the grout off the tiles dissolve the grout without affecting the tile replace the tile s if you can t get the hardened grout off.
Spray the solution on the grout and let it soak for about ten minutes.
Try using a grout haze remover which is available at tile stores.