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  1. #1
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    Default Tiles changing colour

    Have been tiling for a few years and have never come accross this problem before.I laid glazed tiles in a bath/shower and over the last 6-8 weeks some of them have changed to a darker colour.I immediately thought that there was some sort of water ingress at the back and this was soaking into the biscuit.After inspection everything is bone dry.The customer bought the tiles from topps and they were fairly cheap 9.00 a box.One of their staff had heard of this before and said it could be the adhesive that has reacted with the biscuit.The customer has steeped a spare tile in water for about 4 weeks and it hasnt changed colour at all.Customer phoned me today to say that another tile was changing colour.Anybody else out there that has experienced this baffling problem

  2. #2
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    Default Re: Tiles changing colour

    It could be something reacting with the biscuit as you say, I would hazard a guess that the customer is cleaning the tiles with something they shouldn't be. What colour were they and what colour change is happening colour wise ?
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  4. #3
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    Default Re: Tiles changing colour

    Its a tile available in Topps called Valencia Beige its a marbled effect.They are going slightly darker.Its strange that the full tile is changing colour and not ones next to it.

  5. #4
    doug boardley
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    Default Re: Tiles changing colour

    it does sound as though there maybe something from the substrate leeching into the tile biscuit and then the grout is preventing it from progressing into the neighbouring tiles. What was the substrate Mike?

  6. #5
    Tilers Forums Arms Member david campbell's Avatar
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    Default Re: Tiles changing colour

    it could also be something in the shampoo/shower gel thats causing it to react like that

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    Default Re: Tiles changing colour

    the substrate is tanked gyproc and the adhesive BAL whitestar.I dont think its a staining from gel or anything like that as the colour change is exactly a full tile

  8. #7
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    Default Re: Tiles changing colour

    Here is a photo.Its the 2 tiles by the shower valve which is fully siliconed and the 2 cuts in the corner which sit on the bathP1010032.jpg

  9. #8
    doug boardley
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    Default Re: Tiles changing colour

    ouch!! they are very noticeable

  10. #9
    DHTiling
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    Default Re: Tiles changing colour

    I would be checking there is not a leak with the shower..

  11. #10
    doug boardley
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    Default Re: Tiles changing colour

    whereabouts is the new one that's changing colour Mike?, (assuming that this photo was taken prior to customer ringing you today)

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    Default Re: Tiles changing colour

    Dave
    Do you not think that if it was a leak ,there would be some sign in the adjoining tiles below.Also as I said the customer has half steeped a tile continously for nearly six weeks now and there is no change at all.

  13. #12
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    Default Re: Tiles changing colour

    How many tiles is it affecting ? I can see the 2 by the shower valve, are the 2 cuts at the bottom also a different shade or is it the picture, any grout discolouration ?

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