: Using a very high grit (1500/2000) to make a surface perfectly
: smooth for polishing. When auto's are painted, the paint usually
: has a little texture, called "orange peel". For a
: perfect finish, you do a final sanding, and then polish. Hence
: the term "color sanding" as it tends to "bring
: the color out" of the finish.

: StephenHJ

Varnish has to be very dry to do this. It can take quite awhile for the varnish to get hard enough for this process. Single part paints that arn't thinned dry slowly, varnish is basically just unpigmented paint.

Bill H.