Removing Grout Stains From Encaustic Cement Tile

[andy-p]

Fixed 15m2 of handmade encaustic cement tiles supplied by the Cement tile shop and like a complete jackass went and grouted tiles before sealing , after cleaning up saw that tiles were stained then checked suppliers website only to find out seal before grouting , is there a cleaning product that would remove or i will they need mechanicaly polished ? any help would be much appreciated .

 

[Qwerty]

@Lithofin BOB !?

 

[Lithofin BOB]

Getting a few of these at the moment, finicky things!!!!!

You could try a non acidic residue remover, we have lithofin power clean, this is a light alkaline, others makes avalible,
Try it 1-1 or even neat with a white pad, test one tile unlaid first then one tile laid,
All about the test, let test dry if all ok work small sections
I have been testing neat power clean and a green pad on these tiles removing black grout from these tiles , but!!!! A green pad can change the surface finish on some makes of tile, but did in a few cases remove the contamination.
Might be worth picking one up . With the white if you don't
If this works , leave the tile 7-9 days or until fully dry before you impregnate with your chosen product.

 

[andy-p]

Hi , update here , tried various cleaners including the lithofin power sripper but the grout was too ingrained
Only solution was too rub the tiles down with diamond pads and plenty water , hard work but job done and a happy client , probably easier done with a grinder polisher but got there in the end
Thanks for help BOB...