Mirka Gold 5-in. 80 Grit No-Hole PSA Sanding Disc, 100-Pack (23-388-080)
Mirka Gold 5-in. 80 Grit No-Hole PSA Sanding Disc, 100-Pack (23-388-080)
Key Features
Overview
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.
Built to Keep Cutting
This disc is made for production sanding where you want fast cut without burning through abrasives too quickly. The aluminum oxide grain and resin bond work together to keep the disc productive over longer runs.
- 80 grit works well for stock removal, prep sanding, and early-stage finish work
- Aluminum oxide abrasive is chosen for long service life and strong all-purpose performance
- Semi-open coat helps leave a more even scratch pattern
Simple PSA Setup for Solid Contact
The pressure sensitive adhesive backing gives you a secure hold on the sanding pad, which is what you want when you are running steady passes and do not want the disc shifting. The box format also makes it easy to grab discs as you work through a batch of parts.
- 5-inch diameter matches common PSA disc sander setups
- No-hole design is intended for solid-face sanding applications
- 100-count box is practical for shop use and repeat jobs
What's in the Box
- (100) Mirka 5 in. 80 grit no-hole adhesive sanding discs
Key Specifications
| Diameter | 5 in. |
|---|---|
| Grit | 80 / P80 |
| Abrasive Material | Aluminum Oxide |
| Backing Material | D-Weight Latex Paper |
| Attachment Method | Pressure Sensitive Adhesive (PSA) |
| Hole Pattern | No Hole |
| Coating | Semi-Open Coat with Stearate |
| Piece Count | 100 |
| Color | Gold |
| Made In | Finland |
Compatibility
Built For
Pro Tip
Make sure your pad is set up for PSA discs before you order. A 5-inch disc can be the right diameter and still be the wrong attachment type, and PSA versus hook-and-loop is the detail that trips people up.
Warranty & Support
Tool Nut's Take
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.
Common Questions
- 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.