I want to add a maybe 1 inch red strip of paint at the top of the guitar body.would i need to strip the paint to do it?What kind of paint should i use?
but do i sand the whole body or just the strip i want to do?
You can get away with sanding just slightly wider than the strip. Make sure you're just sanding the glossy area *and* not through the color coat. Mask the area that won't be painted, spray, let it dry. Meanwhile, make sure you have fine grit sandpaper, 1500 or 2000, soaking for around 24 hours. After the strip has dried, wetsand the edges so won't feel the demarcation lines. Then clearcoat it. Make sure you use the same brand for the color and clear coat.