How fast can Cem-Kote Flex ST be applied to new mortar/block? How long does it need to cure before spray foam can be applied over it?

Cem-Kote Flex ST can be applied to new mortar/block after 24 hours; however, 48 hours is preferred.  Cem-Kote Flex ST should be cured via air drying for a minimum of three days before spray foam is applied over it.