Mirka Q.Silver 6-in. P180 Hook and Loop Sanding Disc Pack of 50 (2B-622-180)

The Mirka 2B-622-180 6 in P180 Grip-On Sanding Disc is a hook-and-loop style abrasive disc built for surface prep, stock removal, and finish sanding across wood, composites, and metal. This is a sanding disc designed for controlled material removal and surface refinement. Model Number: 2B-622-180. If you need a dependable abrasive for automotive refinishing, wood processing, or composite work, this Mirka disc is set up for that kind of repeat-use sanding.

What matters here is the combination of a 6 inch disc size, P180 grit, and aluminum oxide abrasive. In practical terms, that gives you a disc that is aggressive enough to keep work moving, but fine enough to help clean up surfaces without leaving the deep scratch pattern you’d expect from coarser grits. For shops that move between primer sanding, hardwood prep, and composite finishing, that makes P180 a useful everyday grit rather than a one-job specialty item.

Mirka lists this disc under its 2B Series / Q.Silver family, and the supporting product data points to a semi-open coated construction with resin bonding. That matters because semi-open coatings help reduce loading during sanding, especially when you’re working finishes, fillers, or materials that tend to clog discs early. Resin bonding supports the grain under heat, which is important when sanding harder materials or pushing through repeated cycles instead of burning through cheap discs too fast.

The backing is described as a flexible latex paper type, which is worth paying attention to if you care about how a disc tracks on curves, edges, and uneven surfaces. A stiffer disc can be fine on broad flat panels, but flexible backing usually gives you better contact and more predictable control when you’re working contours, body lines, or shaped wood parts. That is a real advantage in automotive and marine prep where surface consistency matters.

Mirka also calls out uniform grain distribution and a stearate coating intended to reduce clogging and loading. That’s the kind of detail that affects the job more than it affects the spec sheet. When abrasive grain is spread evenly, the finish stays more consistent from disc to disc. When loading is reduced, the disc keeps cutting instead of skating, which helps you spend more time sanding and less time tossing worn discs before they should be done.

This Mirka sanding disc is a good fit for users who already know what they want from a finishing abrasive: reliable cut, clean scratch pattern, and fast disc changes. It makes sense for automotive refinishing techs, woodworkers, composite fabricators, and marine shops that need a general-purpose abrasive in a proven grit. If your work regularly moves between hardwood, metal prep, and composite panels, the Mirka 2B-622-180 6 in P180 Grip-On Sanding Disc is the kind of consumable that earns its place by staying consistent box after box.

Mirka 2B-622-180 6 in P180 Grip-On Sanding Disc hits the sweet spot for everyday finish prep

This is the kind of sanding disc you buy when you want steady cut, less loading, and a grit that actually earns its keep in the middle of the sanding sequence.

• Who it’s for: Automotive refinishers, woodworkers, marine shops, and composite fabricators who burn through abrasives and need consistent results.
• Why it stands out: The P180 grit, aluminum oxide abrasive, semi-open coat, and resin bonding give it a practical mix of cut quality and durability.
• Worth knowing: This is a 50-pack consumable, not a one-off disc, so it makes the most sense for users who already know they need this size and grit regularly.

• What grit is this disc? It is a P180 grit sanding disc.
• What materials is it designed to sand? Source data lists hardwood, composites, and metal, and Mirka also positions it for automotive refinishing work.
• What abrasive does it use? This disc uses aluminum oxide abrasive grain.
• Where is it made? Source data lists Finland as the country of origin.