No,it won't help.The best way to avoid it is lay down a coat of intercoat clear or topcoat clear on the base and scuff it up after it dries.Now you can tape it off and if you happen to get a cut line trimming the tape it won't stand out as bad.The important thing is to let it dry and using the proper reducer is critical.Alot of people grab reducer that's too fast thinking it'll dry faster but it slows down the drying.The top is hard to tape on but it's still releasing solvents and leaves a line where the tape was.Remember too when you pick you're reducer not to go by the temperature it is,you need to know what the temp of the part is.Digital temp guns are great but a cheap one is close to $100.A cheaper route is a small magnetic thermometer you can stick in an inconspicuous spot to find out.Down here the part is roughly around 10 degrees warmer than the air.If it's 80 degrees I'm using 90 degree reducer and sometimes a splash of slower if the humidity is real high.Cooler climates usually don't have the problems we do down here.PPG finally made reducers for us southerners just a few years ago.