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Discuss Limestone floor - colour issues around edges after grouting in the Canada Tile Advice area at TilersForums.com.

Hey guys, spoken to Harry about this and as usual is a great help wondered if anyone has any input on this? Artisans limestone floor , very porous, wanted to go with rapid all in one but they sent hydro seal instead, water based, so went with it, floor was cleaned and left for 24 hours, then sealed , left for 48 hours, I did a water test and it beaded up nicely, started grouting , did a 15m section and felt the grout was grabbing so washed off and stopped , now left with slightly darker stone around the outside , any advice to get this off ??
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B167848E-50BC-4805-A8FD-EE1FA998EAB0.jpeg
 
T

Tile Shop

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:
 

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