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.
A. The Grout Medic sealer will dry to the touch within 1 hour under normal conditions (humidity, air temperature, etc.). The sealer will take up to 3 days to fully cure giving your floor maximum protection against contaminants causing discoloration.