use hairspray add the salt before it dries ..then your next color coat..works better if you use acrylic .water base paint... once the top coat is dry.. rub the paint with your finger ..it will loosen the salt under the paint.. use water and q tip... work the water over the paint..the water will penentrate the acrylic paint and soften both the hairspray and salt...use the q tip and tooth pick to chip the paint.. there are many videos on u tube demonstrating this method.. doc cranky has a few ..really very good