Once I've thoroughly wiped the oil off the surface, then I'm ready to spray. The lemon oil won't ever really dry. You can check this yourself. Dip a piece of scrap, wipe it down thoroughly, then place it on a piece of newspaper or paper towel or what ever you like. Hours even days later, you can move it to a dry section of paper or towel, check it a little later and you'll see spots on the paper where the lemon oil has seeped out. Simply put, just wipe it down thoroughly before you try to seal it. Once it's properly sealed, you won't have any problems with it seeping.
Hope this helps