Scotch Brite Polishing Brush, Fine
These are perfect for working on various materials because they come in three different grades. Because of the little heat generated by the soft, flexible discs, they are incredibly durable. The individual fibers are made to smooth plastics, silicones, and other soft materials, as well as to work on mouthguards, dental splints, and other soft materials. So easy to use because it's pre-mounted on a mandrel for optimum balance.
No polishing paste is not needed for the pre-polishing.
Reaching into concave places is simple.
Throughout the life of the wheel, it consistently produces good results.