Can the grout line be mixed to a certain darkness or lightness? Reason I am asking is because I have a light peach tile flooring and the the grout line looks really dark (close to black). I don't know its because its not completely dry or it is that dark.

Can be white. My tile contractor ask me to use grey or black for floor. If use white it will turn dark and very obvious. For wall is ok.

various 'coloring' can be added. There are some special grouts offered last time when I do-up my house..but ended up i still prefer the black or white options..

You can get tile grout in various shades from the tile shops.

Floor tile better on Black (Grey) area because overtime, White will became black and you need to tight off and redo the white line

It can be many colors, ie look for Mapei brand, i think they have more than 20 colors

After two days, the grout line still looks almost black. I guess its already dry and the colour won't lighten. It looks really horrible, peach colour tile and black grout line. Is there really black colour grout or its it just really grey?? Why can't tiler just use gray and not black.

Is it a lot of work to re-grout???

Depending on the area. It will be tedious work. Manual labour work.
If you intend to replace them, better to do so ASAP as the grout will be even harder to remove as it ages.

Can regrout, just take out the existing one, and re-do only.

Thanks to TS, now I know that there is "grouting" for tiles.
If for floor tiles, dosen't all the grout eventually turn black?

TS, why don't you try doing this since you have intention to replace the tile grout.
Get the some acid and apply them onto the tile grout. Leave the acid soak in for a while. Then was off. The colour of the grout should be much lighter. See if this is acceptable. If not, then remove them and re-grout with the new colour.


they will turn black if you do not clean them

This post has been edited by kelvyn: Sep 10 2011, 02:35 PM

Yes and become very ugly with some black some grey and some original color

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Added on September 10, 2011, 2:36 pmUse acid may damage the tiles

This post has been edited by weikee: Sep 10 2011, 02:36 PM

No la... the acid that is use will not damage the tiles.
They are not the PH value 1 or 2 acid...

My TILERS told me try not to use acid to wash he may have his reason.

If you use acid to wash the floor, make sure don't let the concentrated acid gets on your stainless steel floor traps or any of the stainless steel stuff. It will eat into the surface and you know the effect....
Just use plenty of running water to wash off.

The reason is the acid tends to damage other thing such as your floor trap, not the tile.

And open up all the door and windows of the washing area, to let the acid fully evaporate. If not, the evaporation could damage stainless fittings in the room.

Not forgetting your lungs as well.

Not the ss. He specific told me is the tiles, he say sone tile change color or shine, but he not sure what type of tiles so he just warn me.

My celaka contraktor washed my house with acid, but did not sweep it dry. I duno how long after that onli i visited my house & see pools of water on the floor. Faster2 rinse with pails of water. Too late.. the area submerged in water -> grout lines offcolour & the tile edges look like smudged, & dulled & these are niro tiles !

This post has been edited by mrPOTATO: Sep 10 2011, 08:35 PM

if you go to DIY shop and ask for acid to wash tiles, they will give you the type that is suitable for washing tiles. For sure this type of acid will eat into the grout if you pour direct onto the grout line.. In general, i used the acid to clean up certain tiles surface which has some cements left after the tiler finished the work...