Grout color variation

Hi, I'm having a new master bath built that has a tile floor and tub deck (same tile with same grout color for both locations). The way the contractor built things, the tub deck was tiled and grouted before the floor. The grout color on the deck looks fine, but the grout is much lighter on the floor - even though the grout mix for both locations came from the same bag. My contractor says that the color variations are normal and depends on the weather and how the grout dries. Is this true? And is there anything that can be done to darken up the grout on the floor (ie, a dye of some kind)?
Thanks, Steve
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give it a month or two.
randy

(same
of
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Don`t pay till it matches, or pay extra. If thats true on bag variations he was negligent not to dry mix a double batch. When i used to paint we used to " box" mix together all job product before starting .
Nobody would or should have to be asked to accept a misscolored anything.
You shouldn`t even be put in the position of having to be insulted by a stupid mistake like this.
This would be my waning sign to double ck all work.
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Did you bother to read the OP before pounding on the poor tile guy? All of the grout came from the SAME bag.
There are a lot of factors that could be causing this. My guess is that it is a lighting issue. You are looking at two different surfaces which the light will hit at different angles. Are there windows involved that areproviding natural light to the deck and not so much the floor? it could be atmospheric conditions dried faster than the other causing a difference. You could have effloresence on one and not the other. What is the composition of the subfloor for the floor tile?
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Yea ass hole I read OP, color doesnt match ...... So what......
If it was my house my check would not match till the color did.
Fuck the hacks.................................
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Because you can't read and interpret english, I'm an ass hole? You're clueless....
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Oh " the poor installer" that said it was the same bag.......
When it dries so will the truth...............
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Do you even have a clue what efflorescense is? If that is what the problem is, even god almighty can't cure it until the grout cures and the floor is cleaned.
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LBaker wrote:

Yeah, it could be a lighting issue - the deck has two big windows over it while the floor is lit by overhead lights. I've tried eliminating that, but haven't convinced myself that I've accomplished it. And the contractor still needs to clean up the grout on the floor, so that might change things a bit. As for the subfloor, it's basically a tile backer board over plywood in both cases. I could see, however, the tub deck having better circulation below and above the tile than the floor, so that could make a difference. Plus, the crawl space under the floor is certainly going to be cooler than the tub deck. Given the quality of the work done during the rest of the remodel (and the anal nature of the contractor), I'm inclined to believe him. But my wife has been complaining so I thought I ought to try to get an outside opinion.
Thanks, Steve
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of
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contractor
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The grout can be stained if things don't work out. There are also sealers available that will darken it up somewhat. They also have sealers that will make it have a wet look but that may be too dark.
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Steve wrote:

All I can tell you is that I've been laying a lot of tile and that the color of the dried thinset has varied from light to dark grey depending on (a) how wet I mixed it and (b) how quickly it dried. That which dried more slowly (on less absorbative strate) was darker.
Having tiled, I also grouted. Tile is Saltillo so I was using masonry mortar for grout. Couldn't get my usual brand so used QuicKrete...*MUCH* ligher. Fortunately, it was a small area so I used strong coffee to darken before sealing. Looks OK.
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