Good automotive pin striping tape, the kind good painters use to mask for striping. It is used to make the edge you want and comes in a few different withs, then use regular masking tape to protect the rest of the body. The tape is made to not bleed under, let the paint cure for at least 4 hrs before removing the tape, and if you have a good hand run a brand new razor blade lightly along the tape edge to make sure it wont pull.How can i paint the dark areas on the body. I have not had success with taping, usually pulls paint off and bleeds.