The Mirka IRIDIUM 2.75"x60' PSA Roll, model 24-574-080, is a premium adhesive-backed abrasive roll built for general-purpose sanding. This is a PSA abrasive roll designed for strip sanding, surface prep, and finish sanding on soft and hard materials. For painters, woodworkers, refinishers, and anyone who uses sanding blocks or PSA-compatible hand sanding setups, the big advantage is simple: you get professional-grade abrasive performance in a roll you can cut to the exact length you need.

Mirka builds the Iridium line around a ceramic and aluminum oxide grain mix, and that matters in real use. Ceramic grain helps the abrasive keep cutting as the surface wears, while aluminum oxide adds all-around versatility across different materials. On the job, that means this sanding roll is not locked into one narrow task. It is suited for universal sanding, whether you are leveling body filler, knocking down primer, prepping painted surfaces, or smoothing wood before the next step.

The PSA backing is one of the main reasons to buy this format instead of standard sheets. PSA stands for pressure-sensitive adhesive, so the strip stays planted on compatible sanding blocks and similar holders instead of sliding around. That gives you more control on edges, narrow work, and detail sanding where a loose piece of abrasive can shift and waste time. The 2.75-inch width is a practical size for hand blocks and strip sanding applications, while the 60-foot roll gives you plenty of material for repetitive shop use.

Mirka also calls out a precision coating that helps prevent clogging and reduces pilling. That is not filler copy. Clogged abrasive stops cutting cleanly and starts rubbing, which slows you down and can leave a less even finish. By helping dust clear instead of packing into the grit, this IRIDIUM sanding roll keeps working more consistently through longer sanding sessions. The semi-open coating supports that by leaving more room between abrasive grains, which is useful when sanding coatings, fillers, and other materials that can load paper quickly.

The backing matters too. This roll uses latex and C-paper backing, which gives the abrasive enough flexibility to conform during hand sanding without feeling flimsy. That balance is important on contours, edges, and smaller panels where you need the abrasive to follow the workpiece but still hold together under steady pressure. If you are used to cheap paper that cracks, sheds, or loses bite early, this is the kind of upgrade you notice pretty quickly.

For sanding workflow, the roll format is what makes this product especially useful. Instead of committing to pre-cut strips that may be too long or too short for the block in your hand, you tear off what fits the job. That cuts waste and keeps your setup cleaner. It is a good fit for shops that go through a lot of abrasive during surface prep, and it also makes sense for serious DIY users who want pro-level abrasive without buying multiple pack sizes.

Grit matters, and this specific roll is 80 grit. That puts it in the useful zone for heavier stock removal than finish sanding, but still controlled enough for prep work where you need to flatten, level, or strip material efficiently. It is a practical grit for early-stage sanding steps before moving to finer abrasives.

If you need a versatile PSA sanding strip for repeated use on sanding blocks or PSA-compatible sanding tools, this Mirka roll is aimed at you. It makes the most sense for users who care about cut speed, cleaner sanding, and having abrasive on hand in a format that is easy to size for the task instead of forcing the work to match the sheet.

Mirka IRIDIUM 2.75"x60' PSA Roll is the smart buy for shops that sand a lot

This is the kind of abrasive that makes sense when you are tired of cheap paper loading up early and wasting time.

• Who it's for: Pros and serious DIY users doing regular hand sanding, surface prep, paint prep, or filler work with PSA blocks and strip sanding setups.
• Why it stands out: The ceramic and aluminum oxide grain blend, clog-resistant coating, and roll format give you a strong mix of cut speed, usable life, and less waste.
• Worth knowing: This is a single 80-grit PSA roll, so it is best as part of a sanding progression rather than your only abrasive on the bench.

• What kind of abrasive is this? It is a PSA-backed paper abrasive roll made with ceramic and aluminum oxide grain for universal sanding.
• What size is the roll? The roll measures 2.75 inches wide by 60 feet long, which is 70 mm x 18.3 m.
• What grit is this specific roll? This SKU is 80 grit.
• What does PSA mean here? PSA means pressure-sensitive adhesive, so the back of the abrasive is designed to stick to compatible sanding blocks or holders.