Discoloured Marble, New Install. Help Please !!

[marblehelp]

My contractor installed Venatino Polished marble tiles this week. My wife and I noticed that four of them were scratched after install, so he pulled them out and reinstalled 4 new ones. Now the 4 new ones that he has installed are much darker in color compared to the rest of the floor and look terrible.

The 4 new ones were installed a few days ago, prior to install they looked exactly the same color as the other floor tiles, now they look much darker after install. I was hoping that they were just wet, now days later and they are still exactly the same dark color.

I read online that sometimes marble takes weeks to dry up back to the natural color, however the other floor tiles dried up within hours of install and never remained looking dark like this.

The problem is the rest of my bathroom is coming in next week, so if i need to rip them out and start again I will need to do this tomorrow as i do not want the bathroom being finished with me " hoping " that in a few weeks they will dry up and match the rest of the floor only to realize in a few weeks they are still discolored and now I am stuck with them .

Could the installer have used a product that discolored the tiles ? What could have done this ? What can i do to fix this ? If i rip them out, whats to say that this wont happen again if i pull them out and put four new ones in again ?

 

[marblehelp]

Photos taken today four days after install.

 

[Ian]

Are they from the same batch of stone? And was the same adhesive colour used for the original tiling and the 4 new ones?

 

[Lithofin BOB]

Did he pre seal, before laying
As above , which adhesive slow or fast set
I get a few of these -if not sealed , can take a week or so to migrate the moisture dependant on addy. If sealed - we may need to release it or possibility of moisture staining.

 

[marblehelp]

Thank you for replying, we did not seal them first as we wanted to allow the moisture to escape.

Yes white thin set, white epoxy grout , and the tiles match exactly as they were all purchased at the same time and double checked.

We left the house came back after install, saw them like this and thought they must be just wet. Now four days later zero improvement. My contractor was already upset about having to pull four of them up and replace them with the new ones due to scratches. He is going to flip if i ask him to pull them back up and lay new ones.

The other floor tiles were set a few days prior to these four replacements and only stayed wet looking for hours before drying back to the perfect natural color.

 

[Dave]

Did he use the same thinset ?

 

[Lithofin BOB]

Thank you for replying, we did not seal them first as we wanted to allow the moisture to escape.

Ok so you didn't seal them first, but have you sealed these?

 

[cam_low]

if they were scratched why did he not polish them out?

 

[marblehelp]

He said that we would need a special machine to buff the tiles and it would be cheaper to just replace them.

if they were scratched why did he not polish them out?

 

[Lithofin BOB]

Are these tiles sealed at all?