Primed the floor (concrete/self-leveling compound) before goop+membrane would go on, then things came up (Christmas Eve, New Year's, had no idea) and it's going to be about 3 weeks before the waterproofing layer is in place. It usually says that the primer should be covered within about 1-3 days, what really happens otherwise? Should I prime over the primer again? Does it get better or worse?