New grout, too light (gray), can I 'dye' it charcoal/black?

fishfacenjJuly 3, 2008

Hi! I've done a few searches, but I'm mainly finding info about cleaning/lightening grout, but I want to darken the grout. They just put it up today, so it's not sealed yet, and it's too light. The bathroom floors are slate (very dark gray/black) and the shower walls are porcelain that looks like slate. I'd prefer dark grout that matches, but through my own oversight we ended up with light gray grout :( I found a reference on here to Aqua-Mix, and will try to read more about that, but anyone know if I can somehow darken what I have, or maybe even put another layer of dark grout over what's there before it gets sealed?

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bill_vincent

You can try darkening it up with an enhancing sealer. The problem is that if it doesn't darken sufficiently, you may have a problem using a colorant afterward, if you so desire. As for going over it with a darker grout, there's a good chance that most of it will wash out when you clean the excess grout off, and what doesn't wash out at that point will flake out once it dries.

In short, it's a bad idea.

    Bookmark   July 3, 2008 at 9:37PM
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fishfacenj

Wow, you're fast!! Can I use the colorant first (now) and then seal it?

    Bookmark   July 3, 2008 at 9:40PM
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bill_vincent

Once you use the colorant, it's ALREADY permanently sealed. :-)

    Bookmark   July 3, 2008 at 9:59PM
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fishfacenj

:) Oops, I guess I mean can I use a colorant/sealer now since they haven't sealed it yet? (and skip the enhancer/sealer--sounds like that won't be dark enough for me). I don't have pictures yet, but I know the wall grout is DeLorean Gray, and the floor is Mist.

    Bookmark   July 3, 2008 at 10:38PM
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bill_vincent

Yes, you can, and regardless of what the color is now, or what you want it to be, it can be done, and relatively easily.

You said you've done some research and found the reference to Aquamix's colorants. They're the best there is. I have a link to where you can buy them on line, as well as a forum thread that gives explicit directions on using them.

Here's the url to buy them on line:

http://www.1877floorguy.com/grcopr.html

And below is the link to the forum thread. Refer to reply #2:

Here is a link that might be useful: Using Grout colorants

    Bookmark   July 3, 2008 at 11:11PM
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fishfacenj

Thanks for the info, Bill. I was away for the weekend and didn't have handy Internet access. The good news is that my contractor is going to scrape out the light grout and replace it with the Charcoal gray grout I got today :)

    Bookmark   July 7, 2008 at 10:12PM
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bill_vincent

Good deal. I love a happy ending! :-)

    Bookmark   July 7, 2008 at 10:34PM
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