I am using FDGH paint which is required on the aircraft that I am working on. Well due to budget contraints I need to save as much as I can and am trying to avoid re-clearing an entire panel after a composite repair and base coat. I try to blend the clear coat as much as possible so I don't have much of a hard line to wet sand out. However after cutting and buffing I still get a faint line that when held in the right light you can really see. I wetsand down to 3000 and buff it out like normal. You can't feel an edge of the paint or anything and it has an immaculate shine. However still see the blend line. Any ideas of how I can get ride of these blend line. I can't get a picture of it at all. Just dosen't show up.