Once you've marked off the measurements for the pinstripe, carefully apply the painter's tape, ensuring the it remains straight and follows your measurements. You may want to prop the doors next to each other to check on the alignment of the pinstripe across the two doors.
Press the tape firmly to the surface, making sure the edges are adhered.
Begin painting at the top of the doors, holding the can of Gloss Vintage Gray 6-8 inches from the surface and paint using a sweeping side-to-side motion with slight overlap.
Allow paint to dry for 30-60 seconds.
Continue to apply light, multiple coats, waiting 30-60 seconds between each, until you are satisfied with the appearance.
Once you have achieved the appearance you want, carefully remove the painter's tape while the paint is still fresh, within 20 minutes.