Originally Posted by Contagion
I got some 200 grit here as well. I am not going to start completely over, I am just going to get all the paint even for now, then go back over it with another coat. Right now it is clumpy.
First, wait until it is 100% dry (ie tomorrow) then get to work on it.
If you just want to "smooth it out", the get a paint stick at Lowe's and cut it in half. Then, wrap the 400 around it so it has a nice flat surface to support the paper. Hold it flat against the case and sand in an crisscross or X pattern. Once everything is nice and flat, then work on smoothing, then work on edges and curves. If your 400 is wet paper (which it prob is) keep lots of water on it to help keep it from getting clogged with paint.
Remember the paint will be at its thinnest on edges and corners, so go slow. Paint generally will make surface flaws worse not cover them, so keep that in mind when you are sanding. But the good news is, white paint is actually better than any other color for "hiding" mistakes or flaws.
Good luck and have fun, I hadn't really even considered painting PC stuff, now this thread has me thinking.....