If the clear coat on your paint is sun damaged, so that your car looks like it has a coating of frost on it, and you can't afford a new paint job right now, I have a quick fix for you. The "magic" ingredient you need is this:
I got this a few years ago along with some touch-up paint I bought online, and, unfortunately, I can't find where I got it anymore. But I found that both paintscratch.com and paintworldinc.com have other brands of clear coat blender that may work as well. An automotive paint dealer should have the Dupont stuff.
The procedure is this: First, feel your paint, and if it feels a bit rough, sand it lightly with 1500 grit wet sandpaper. Next, wipe the area, including a bit of the surrounding area, with a paper towel moistened with isopropyl alcohol. This will remove any dust, dirt, and car wax. Then spray the area lightly with the clear coat blender. It is very thin, so it is important to spray lightly. Any build-up at all will run. But it dries almost instantly, and you can use more than one coat. It lays down flat, and does not produce any "orange peel" at all. And it blends with your old, frosty clear coat and makes it clear again.
