Have you ever added more water to improve the flow of your levelling compound, particularly at thicker applications? Adding more water can affect the overall performance of the product and drying times, which can lead to laitance or dust on the dried surface which will need to be removed the next day. With ARDEX K 40 HB there’s no need to overwater. If you’re levelling floors up to 40mm simply use the lower water content which you’ll find on the back of the bag. So, even at 40mm you’ll still get outstanding flow, workability, and control.