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Help! Tiled wetroom floor looks perfect but grout doesn't dry out!
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[QUOTE="Paula, post: 876179"] Hi Rob sorry to hear you're having the same problems as me. I'm a bit confused, though: from what you say, it sounds like the Porcelanosa grout you used is an epoxy grout, which shouldn't change colour on wetting as far as I know. It is completely waterproof, so any water would just run off the surface rather than soak in, as is the case with normal grout. If the dark colour disappears on drying, then I don't think the epoxy is working properly, or you have another sort of grout maybe? I know my thread is long and convoluted, but if you look back through it you'll see that we solved the original wetting problem by taking up the drain surround. It turned out that the tiler had not put enough adhesive under the metal drain cover, so water was able to get through the grout and pool under there. Perhaps you could you have the same problem? I know some drains have seep holes built in, so that water that gets through grout and under tiles can seep into the drain rather than pooling. It could also be that these have been blocked by adhesive by the tiler. It may well be worth investigating. If neither of these are problems in your case, then the water must be getting under the tiles through small cracks in the grout or around the drain. Are you sure there aren't any tiny cracks? I've also wondered about using sealant, which would certainly be flexible enough to eliminate cracking, but I don't think it would look very nice, and am not sure how long it would last in such a wet environment. You don't say whether your wetroom is on a solid or suspended timber floor. If it's on a solid base I would definitely recommend using proper epoxy grout, as it would not change colour at all on wetting (although I'd recommend eliminating the two possible drainage problems I mentioned first, as it's not good to have pools of water under tiles). If your wetroom is on a suspended timber floor, then I'd steer clear of epoxy, given my experience, as it obviously can't cope with the movements that occur when someone is showering. Hope this helps! [/QUOTE]
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Australia Tiling Forum
Help! Tiled wetroom floor looks perfect but grout doesn't dry out!
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