Swix Blue Nylon Brush After scraping, the pros will use many brushes to get their wax job perfect. Use the Rectangle Fine Blue Nylon brush as a polishing brush for all waxes, after the majority of the excess wax is removed with the steel brush and medium bronze brush. The Fine Blue Nylon brush is made with a fine and soft nylon to give a smooth, glossy finish. It only takes 5 to 10 strokes. Superb polishing brush for all waxes Fine soft nylon brush 5 to 10 strokes