On the directions for the chalk board paint (oh...yes you can get a spray
paint version, but I am getting the version in the can and rolling it on) It
does say to wait 3 days before using chalk on it. So I guess it does need time
to cure. However, you can put the second coat on after 4 hours. So I will
prime one day (am using the roll on primer vs. the spray on primer) then one day
to paint...then that will be that! Cross your fingers! I am also going to go
over the doors lightly with sandpaper to give them some tooth to really hold
that primer on!