Limestone floor - colour issues around edges after grouting

[Dumbo]

Right I spoke to tim at artisans and he said he doesnt know of this happening but they did a lighter stone of similar texture in the showroom which picture framed. Now the bad news they tried everything and in the end just left it and eventually it dried out , but he did say a couple of months .

 

[Tiler Durden]

It’s been a day? Give it some time. Get a fan in the room. I find this helps.

 

[J Sid]

Right I spoke to tim at artisans and he said he doesnt know of this happening but they did a lighter stone of similar texture in the showroom which picture framed. Now the bad news they tried everything and in the end just left it and eventually it dried out , but he did say a couple of months .

So good if them to tell customers who bought this type of stone of them that this could happen

 

[goz]

Right I spoke to tim at artisans and he said he doesnt know of this happening but they did a lighter stone of similar texture in the showroom which picture framed. Now the bad news they tried everything and in the end just left it and eventually it dried out , but he did say a couple of months .

Will give them a ring for a chat ..... months ? Jesus wept the customer has an 80 grand kitchen going in in a few weeks.... makes my bum hole tighten worrying about it

Hopefully its watermarking. Give it a few days to see if it starts to dry out. If it remains and appears unchanged, the grout has either penetrated the tiles or just ingrained in the micro-texture of the surface of the stone. Don't be tempted to try a regular grout stain remover. It will knacker it. LTP have one that is suitable for unpolished marble and limestone that you could give a go:

LTP Cement Grout & Salt Residue Remover

A rapid action cleaning agent for removing cement residues, grout stain, salts, efflorescence and other similar deposits. May also be used in dilute or concentrated form. Ideal for use on all types of unpolished natural stone can also be used on porcelain, glazed ceramic, slate, quarry tiles...

www.ltp-online.co.uk

First thing I thought of this.... only saw it for first time last week, be Interested to see if any good

 

[Dumbo]

You know sales

Will give them a ring for a chat ..... months ? Jesus wept the customer has an 80 grand kitchen going in in a few weeks.... makes my bum hole tighten worrying about it

Do you have an off cut that you can grout the face of then let that dry and see if it stains also get another off cut and just get it wet with clean water and see how that looks .

 

[goz]

You know sales

Do you have an off cut that you can grout the face of then let that dry and see if it stains also get another off cut and just get it wet with clean water and see how that looks .

I can give that a go, what are you thinking??

 

[Dumbo]

To see wether it's grout stain or dampness

 

[J Sid]

Need to seal the face before you test

 

[Just Rizzle]

i only ever use lithothin products they very rarely go wrong.
what grout did you use?

 

[Flintstone]

The beauty of rapid all in one is you can seal damp stone and it lets the moisture out. Hopefully this sealer also let's the moisture out. It's ok using lithofin if you have loads of time on your hands .
That does look to me more like grout staining than moisture ingress.