Manufacturer: Rusfre. Q: What areas is Rusfre 1000-1B used on?. Q: Is Rusfre 1000-1B rubberized?. The All-Purpose Innerpanel Rustproofing can also be referred to as inner panel rustproofing, black rustproofing coating, wax-based rustproofing, automotive corrosion preventive coating, and cavity rustproofing coating.
