How long do you have to wait before you can fit luxury vinyl tiles with your current water-mix? We know you’re probably not screeding and fitting the same day, but it’s good to know that ARDEX K 40 HB is ready to install floorcoverings after just 6 hours at 5mm, and in as little as 48 hours at thicknesses of 40mm! Don’t forget, there’s little or no further prep work at any depth, so think of the additional time