3M™ Resinite™ Floor Surfacing Discs are used extensively in Marine applications for fairing large areas of hulls, smoothing repair areas, etc.
They are also commonly used for sanding plugs used to make molds.
Non-marine uses include sanding floor areas not accessible to drum sanders.
Also removing paint from exterior wood siding, trim, and decks.
Sharp, fast-cutting synthetic mineral with a tough, flexible paper backing.