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Ann
Recoloring Grout?
Ann

Is there a way to change the color of tile grout?
Several years back I tiled a bathroom (shower, floors, and wainscot). The tiles look good but I made a big mistake using off-white grout. I cannot keep it clean enough. Is there a way to color it dark gray?

dj1
Re: Recoloring Grout?
dj1

By now your grout is hard and there is no way to mix grout color into it. Painting over it is an option, but not so good.

What I would do is this:

- Re-grout by removing the existing off white grout (use a special hand tool for this, you can find it at the stores, OR a power grinder, if you don't mind the dust).
- Inspect the tiles, replace any cracked or broken tiles and get it ready for grouting.
- Get the desired grout (Grey grout is available at the stores), mix it and apply it just like new.
- I assume you know how to mix and apply grout and how to clean.

Clarence
Re: Recoloring Grout?
Clarence

I am going to give one of my trade secrets.
Use W-D 40 mixed with the correct liquid coloring agent.
Brush it on the cleaned mortar joints wipe off excess after a min.
I have use this on exterior brick and mortar that did not match and it blended in the old and new you can't see where it was used.
Keep in mind you won't find a forular for this anywhere test on an white cement brick or block of a close match.

Ann
Re: Recoloring Grout?
Ann
Clarence wrote:

I am going to give one of my trade secrets.
Use W-D 40 mixed with the correct liquid coloring agent.

Sound like a good trick! But what do you mean by the "correct liquid coloring agent"?
Thanks.

Clarence
Re: Recoloring Grout?
Clarence

Universal liquid dye as used in paint tinting.
Big Box store use it to tint paints.

CeliaP
Re: Recoloring Grout?
CeliaP

I think that they actually sell grout color pens. Years ago a contractor used white grout instead of the gray grout I had bought for my bathroom floor. He went out and bought a pen like thing then proceeded to color the grout gray. It's held up for these past 10 years. Of course he used it on brand new clean grout. Not sure how it would hold up on older grout.

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