The Mirka 23-388-080 5 in. 80 Grit No-Hole Adhesive Sanding Disc is a pressure sensitive adhesive sanding disc sold in a 100-count box for general-purpose sanding and surface preparation. This is a sanding disc designed for finishing and heavy stock removal on wood, metal, paint, and coatings. Model Number: 23-388-080. If you need a 5-inch disc that cuts fast, holds up, and fits a PSA setup, this is the kind of abrasive that earns its keep.

What matters here is the balance of cut speed and usable finish. The 80 grit aluminum oxide abrasive is aggressive enough for material removal, but Mirka pairs it with a semi-open coat to keep the scratch pattern even and consistent. That makes it useful for roughing in surfaces, stripping down coatings, or stepping through a sanding process without leaving a mess that takes extra time to clean up later.

Mirka also builds this disc around durability. The sharp aluminum oxide grain is backed by a high-strength resin bond for better grain support, which helps the abrasive stay productive instead of dulling out early. On repetitive sanding work, that means fewer disc changes and more consistent performance across the box.

The special stearate coating is one of the more practical details. It is there to fight loading and clogging, especially when you are sanding materials that tend to gum up an abrasive. That matters on painted surfaces, coated parts, and general finish prep because a loaded disc stops cutting and starts wasting time.

From a setup standpoint, this is a no-hole, 5-inch PSA disc with a D-weight latex paper backing. The no-hole layout makes it the right choice for sanders or pads that use solid-face adhesive discs rather than vacuum hole patterns. The self-adhesive mounting also keeps the disc planted during sanding, which helps when you are trying to keep the cut even across flats, edges, and contour work.

This Mirka sanding disc fits best with users who already know they need a 5-inch pressure sensitive adhesive disc and want a dependable all-purpose abrasive rather than the cheapest option on the shelf. It makes sense for woodworking, automotive prep, metalworking, remodeling, and serious DIY sanding jobs where disc life, cut quality, and resistance to clogging actually matter.

Mirka 23-388-080 5 in. 80 Grit No-Hole Adhesive Sanding Disc Gets the Basics Right

This is a solid all-purpose abrasive for guys who want dependable cut, less loading, and a PSA disc that stays put while they work.

• Who it's for: Anyone running a 5-inch PSA sander for surface prep, stock removal, paint work, wood sanding, or general shop sanding.
• Why it stands out: The aluminum oxide grain, stearate coating, and semi-open coat give it a good mix of cut speed, disc life, and cleaner sanding on materials that can clog cheaper paper.
• Worth knowing: This is a no-hole PSA disc, so double-check your pad setup. If your sander is built around hook-and-loop or a vacuum-hole pattern, this is not the right disc.

• What type of backing does this disc use? It uses pressure sensitive adhesive backing, also called PSA or self-adhesive backing.
• Does this sanding disc have dust extraction holes? No. This is a no-hole sanding disc.
• What materials is it suited for? Source data lists it for all-purpose use, including wood, metal, paint, and coatings.
• Is this meant for fine finish sanding? It is an 80 grit disc, so it is better suited for heavier prep work, stock removal, and earlier sanding steps than final finish sanding.