http://CollisionBlast.com – Many times you will need to sand runs, orange peel, dirt or many other imperfection from a painted surface. This is a quick tutorial that explains what grit of sandpaper to use when color sanding and buffing a paint surface.
Click for sanding chart… http://www.collisionblast.com/wp-content/uploads/2012/07/buffing-grit-chart-pdf.pdf
Click here for sanding tutorial http://www.youtube.com/watch?v=PRm7rLi6ymE
Click here for buffing tutorial http://www.youtube.com/watch?v=RC0_3SyiRnI