How long do I have to allow the floor to cure after the use of sealant?

You should give some time to curing the floor. According to us, 30 minutes will be enough before walking on the floor to allow the sealant to dry. however, you need to wait for 24 hours for the sealant to cure completely. Apart from that just try to avoid any kind of liquid coming in contact with the sealant during the period of drying.