The Mirka IRIDIUM 2.75"x33.5' Perf-Roll, Grip, 20 Holes is a premium paper abrasive roll built for pros who need fast sanding, reliable dust control, and the flexibility to cut the strip length they actually need. This is a paper abrasive roll designed for universal sanding. Model Number 24-570-080. In this version, the roll uses an 80 grit abrasive for heavier material removal, surface leveling, and early-stage prep on soft and hard surfaces.

What matters here is the abrasive blend. Mirka uses a mix of ceramic and aluminum oxide grains on a flexible paper backing, which gives this sanding roll a good balance of cut speed and consistency. The ceramic grain helps the abrasive stay sharp longer, while the aluminum oxide supports a more even scratch pattern. On the job, that means you can move through rougher prep work faster without the paper falling off too quickly.

The backing and coating matter just as much as the grit. Mirka calls out a precision coating that helps prevent clogging and reduces pilling, which is exactly what you want when you're sanding fillers, primers, paint, wood, or other materials that normally load paper in a hurry. Less clogging means the abrasive keeps cutting instead of skating across the surface, and that translates to more usable sanding time from each section of roll.

Dust control is another big part of why this product stands out. The 20-hole perforated pattern is there to support dust extraction, and Mirka specifically notes that Iridium is built to repel dust and improve extraction performance. If you're sanding with extraction in mind, cleaner holes and better airflow help keep the surface visible, reduce cleanup, and cut down on the fine dust that usually hangs around the work area.

The roll format is practical too. At 2.75 inches wide and 33.5 feet long, this is a smart choice for anyone who goes through abrasive regularly and does not want to be locked into one sheet length. Tear off only what the task calls for, whether you're loading a sanding block, working smaller repair areas, or setting up for repeated prep work on a bench. The grip format also makes it a good fit where a grip-style attachment is required.

This Mirka sanding abrasive is a strong fit for body shops, refinish work, woodworking, maintenance departments, and general surface prep. If you need an 80 grit strip that removes material quickly, resists clogging, and works across a wide range of substrates, this is the kind of abrasive that earns its keep. It is especially useful for users who care about dust extraction and do enough sanding to benefit from roll stock instead of individual sheets.

Why the Mirka IRIDIUM 2.75"x33.5' Perf-Roll, Grip, 20 Holes earns bench space

This is the kind of abrasive roll you buy when cheap paper is costing you more in time, dust, and constant change-outs than it saves up front.

• Who it's for: Pros and serious DIY users doing regular surface prep, refinish work, wood sanding, or filler and paint removal with 80 grit.
• Why it stands out: The ceramic and aluminum oxide mix, dust-resistant coating, and 20-hole perforation work together to keep the strip cutting longer than bargain paper.
• Worth knowing: This is a roll, not pre-cut sheets, which is great if you want flexibility but means you should match your tear length and hole alignment to your sanding setup.

• What grit is this version? This model is 80 grit, which is typically used for more aggressive sanding and early-stage surface prep.
• What size is the roll? The roll measures 2.75 inches wide by 33.5 feet long.
• What abrasive grain does it use? Mirka specifies a mix of ceramic and aluminum oxide grains on a flexible paper backing.
• Is it designed for dust extraction? Yes. It uses a 20-hole perforated pattern, and Mirka states that dust extraction is optimized with the multi-hole design.