This is continued from the last post about choosing the right block for wet sanding. The goal is to get the clear to look as flat as possible when it is buffed. So just a few sanding tips. First, 600 grit cuts the clear coat the best, especially on the proper acrylic block. With acrylic sanding blocks, you will be able to feel the texture of the paint as you sand it, letting you know, for the most part, if it is flat or not. As a general rule, like body work, sand the clear with the curve of the panel at roughly a 30 degree angle. The picture in the bottom is an example of this.
With 600 grit, it can work well to do the majority of the sanding with the direction that you will be sighting down the panel when the car is complete. This would be much closer to sanding in a straight line, around 10 degrees or so. This also helps for any areas that have a slight reverse curve to them, or anything that could be very slightly low or hallow. These areas always tend to want to stay a little bit ripply. Never use the sanding block in a straight line, the corners will dig in, but close to a straight line. With the block at a slight angle, it will help cut the ripples out of these areas. The picture on the bottom is an example of this sanding pattern.
Mostly, pay attention while you are sanding to how the clear feels, and try to sand in the best direction that cuts that texture out. Be careful to not sand groves in the paint.