Harbour325Sharpie markers are an attractive art impliment when you want to make a strong black line. However, you need to be very sure that you are not going to want to change that line, because Sharpies are very permanent. Plus, they will bleed up through subsequent layers of acrylic paint, making changing those lines almost impossible. In painting, it’s safer to use a dark paint and a rigger brush for dark lines. In the acrylic painting on the left, I did use Sharpies to make the rigging on the boats. Here is a link to some fun art that was made with Sharpies. And no, fun though it is, I don’t think I’m doing this to my car. “Awesome Artwork Made with Sharpies“.