NANOFIL® Self-Leveling Filler NanoFIL® is the ultimate filler formulated with advance technology to achieve that instant detailed finish. Reduce hours and hours spent on compounding and polishing without reducing paint. It removes minor stains, light oxidation, and covers most swirls and scratches from your car leaving a smooth, slick, deep showroom finish. Instant detailed finish. Deep showroom shine. Fills surface without reducing paint. *By request/order.