This stress will be tensile during temperature decrease, or compressive. during temperature increase. If the compressive stress level exceeds the column buckling resistance of. the restrained length, then lateral buckling (or snaking) will occur.
Dry Time. In most cases, you should allow the grout to dry overnight before using that room as total dry time may take up to 24 hours. If you are thinking about sealing your grout after you have installed it, you need to wait even longer than that so that all of the moisture has had time to be released.
After you have spread the grout on the wall tiles, you should wait for about 20 minutes, before cleaning it with a semi-dry sponge or cloth. In this time, we recommend you to clean your tools with water, otherwise you wonât be able to use them again. Check the whole surface again, to see if you have missed a spot.