This 3M 732U abrasive disc is a 6-inch, 240+ grit sanding disc designed for consistent, high-quality finishing on various substrates. It’s useful because its unique construction helps minimize loading and provides a long lifespan, which means less time spent changing discs and more consistent results on your finishing tasks.
- The C-weight backing provides good flexibility for sanding contours while remaining durable enough to resist tearing on aggressive applications, giving you reliable performance until the abrasive is fully used up.
- The 240+ grit mineral delivers a finer finish that is ready for priming or painting, ensuring you don’t have to spend extra time re-working surfaces.
- The die-cut format and non-hole (NH) design ensure proper fit and quick attachment to corresponding 6-inch backup pads, simplifying the changeover process and saving labor time.
Who this is best for
This disc is best suited for auto body shops, woodworking operations, and industrial manufacturing facilities that require consistent fine sanding for preparation before coating, especially where a longer-lasting disc and quality finish are critical.

