Ideal for feather edging, stripping old paint and dry sanding filler. Sharp, hard premium abrasive is perfect for aggressive sanding. Norton Multi-Air Process combines the excellence of a premium Norton Multi-Air abrasive disc with an innovative dust-extraction Multi-Air back-up pad. Multi-Air addresses multiple markets including those sanding primed and painted parts in the automotive industry, composites, marine gel coat, furniture, non-ferrous metals and many more.