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Maybe Saturday night's not the best time to ask but would anyone be able to advise on the time ARDEX-FLEX FS needs to dry before sealing? The bag doesn't say other than that it's walkable after 5 hours. But I don't want to walk on it - I want to put the new sink in the worktop and start on a week's worth of washing up. Technical Data on the website says Final Set (Vicat) approx 4 hours and gives Brinell Hardness figures up to 7 days. So would that be 4/5 hours or 7 days before I can seal it?
The grout's been on for a touch over 48 hours now and I was thinking of sealing it tomorrow/today. However, Google now tells me people are saying to leave grout for 30 days before sealing. I know I could ring ARDEX on Monday but that's Suday gone.
(Background, if relevant, is that 25 years ago I put a tiled worktop all round the kitchen - seemed like a good idea at the time and nobody said otherwise - and suddenly that rusting sink needed changing. Because I've still got half a bag of ARDURIT F4 and a drop of ARDION 101 in the shed I assumed that was what I'd used in the first place. Apparently ARDEX-FLEX FS does the same job all in one now so thinking maybe 25 years shelf-life might be pushing it a bit, off I went - lifted a few tiles, cut a bigger hole for the new sink, chipped out all (well, most of) the old grout and regrouted with the new stuff. Now I'm not so sure that was actually what I did use because the surface seems a lot rougher - hence the sealer.)
The other option seems to be, according to Google again, to silicone the joints, put the sink in and not make too much of a mess until the 30 days are up. But I would have thought it would be more effective to get the sealer on before all that so the grout is sealed well under the sink and silicone. After all, I want this to last at least another 25 years!
Any advice gratefully received.
The grout's been on for a touch over 48 hours now and I was thinking of sealing it tomorrow/today. However, Google now tells me people are saying to leave grout for 30 days before sealing. I know I could ring ARDEX on Monday but that's Suday gone.
(Background, if relevant, is that 25 years ago I put a tiled worktop all round the kitchen - seemed like a good idea at the time and nobody said otherwise - and suddenly that rusting sink needed changing. Because I've still got half a bag of ARDURIT F4 and a drop of ARDION 101 in the shed I assumed that was what I'd used in the first place. Apparently ARDEX-FLEX FS does the same job all in one now so thinking maybe 25 years shelf-life might be pushing it a bit, off I went - lifted a few tiles, cut a bigger hole for the new sink, chipped out all (well, most of) the old grout and regrouted with the new stuff. Now I'm not so sure that was actually what I did use because the surface seems a lot rougher - hence the sealer.)
The other option seems to be, according to Google again, to silicone the joints, put the sink in and not make too much of a mess until the 30 days are up. But I would have thought it would be more effective to get the sealer on before all that so the grout is sealed well under the sink and silicone. After all, I want this to last at least another 25 years!
Any advice gratefully received.