DSPIAE ALUMINIUM PANEL LINE PENFast & Accurate Panel Lines | Less Over Run Dip the nib into panel line colors until it covers the nibs breath hole. Slightly brush the nib against the bottle to get rid of extra colors. Gently push the nib after positioning the tip accurately at the starting point to let color flow by itself into engraved panel lines. Carefully lift the tip from model surface and wait for the color to dry thoroughly. Then, check...