15-20 minutes after spraying base coat and you can normally tape, i also do not know what the temp is where you live. The most user friendly is to spray the base coat, then spray a coat of clear, let it dry for half a day and the tape sticks alot easier and the base under is sealer up. Spray the stripes and clear again over the striped area. Do this two or so times and after each clear dries sand the ridge left by the tape down with 320 or so. Then once its gone, spray you final 2 coats of clear
Hope this helps