Key Features
Overview
The Mirka 23-332-080 Bulldog Gold PSA Sanding Discs are 5-inch, 80-grit pressure sensitive adhesive sanding discs made for fast stock removal and surface preparation. This is a PSA sanding disc designed for heavy material removal, finish removal, and intermediate sanding on wood, metal, and composite materials. Model Number: 23-332-080.
What matters here is the balance between cut speed and disc life. Mirka lists a durable aluminum oxide grain and a heavy-duty resin bond, which is the combination you want when the job calls for aggressive sanding without the disc giving up early. The 80 grit rating puts this disc in the range where it can move material quickly, flatten uneven surfaces, and prep workpieces before you step down to finer finishing grits.
Bulldog Gold is built as a coated abrasive with a semi-open, uniform coating pattern. In practical terms, that helps maintain a more consistent scratch pattern while also giving dust and removed material a better chance to clear instead of packing the face immediately. Mirka also calls out a special stearate coating to improve resistance to clogging and loading, which matters when you are sanding materials that tend to gum paper up and kill cut rate.
The pressure sensitive adhesive backing is meant for sanders that use PSA discs rather than hook-and-loop pads. That setup gives you a firm, direct bond to the backing pad, which many users prefer when they want a flat, controlled sanding feel on broad surfaces. Since these are listed as no-hole discs, they are best matched to applications and backing pads where dust extraction through the disc is not the priority.
At 5 inches in diameter, this Mirka abrasive fits a common size used in shop sanding and production prep work. The material compatibility listed for wood, metal, and composites gives it useful range, whether you are knocking down body filler, cleaning up fabricated parts, or prepping wood surfaces before moving to finer abrasives. This is not a finishing disc. It is the step you use when you still need the abrasive to do real work.
If you go through discs regularly, the 100-count box is a real advantage. It is geared more toward body shops, woodworking shops, fabrication work, and serious DIY users doing repeated sanding tasks than someone who only needs a couple discs once a year. If your sander uses 5-inch PSA paper and you want a dependable 80-grit option for fast cutting, this is exactly the kind of consumable that earns shelf space.
Built to Keep Cutting Longer
For coarse sanding, the difference between a decent disc and a frustrating one is how long it keeps cutting before it loads up. Mirka calls out a stearate anti-load coating and a durable aluminum oxide grain, which is the right combination for steady stock removal instead of a disc that quits early.
- 80 grit is suited for finish removal, shaping, and prep before finer sanding steps
- Aluminum oxide abrasive is durable and appropriate for wood, metal, and composites
PSA Backing for a Firm, Flat Feel
Pressure sensitive adhesive discs are a good fit when you want full-face contact and a more direct feel against the work surface. On flat sanding jobs, that firm attachment can help keep the disc planted and consistent, especially during heavier material removal.
- 5-inch disc size fits common PSA sanding setups
- No-hole design matches applications where through-disc dust extraction is not required
What’s in the Box
- (100) Mirka Bulldog Gold 5 in PSA sanding discs, 80 grit
Key Specifications
| Tool Type | PSA sanding disc |
|---|---|
| Disc Diameter | 5 in |
| Grit | 80 |
| Grit Range | Medium |
| Abrasive Material | Aluminum oxide |
| Disc Pattern | No hole |
| Backing Type | Pressure sensitive adhesive (PSA) |
| Quantity | 100 discs per box |
Compatibility
Built For
Tool Nut’s Take
Mirka 23-332-080 Bulldog Gold PSA Sanding Discs are the kind of shop consumable you buy by the box on purpose
If your setup takes 5-inch PSA discs and you need an honest 80-grit cutter for prep work, this is a practical, work-ready choice.
- Who it’s for: Body shops, woodworkers, fabricators, and serious DIY users doing repeated sanding and material removal.
- Why it stands out: The aluminum oxide abrasive, anti-load stearate coating, and 100-disc box make sense for users who care about cut consistency and staying productive.
- Worth knowing: These are no-hole PSA discs, so make sure your sander uses pressure sensitive adhesive paper and that you do not need a hole pattern for dust extraction.
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