The Mirka Iridium 4.5" x 30' PSA 220 abrasive roll, model 24-573-220, is a fine-grit sanding abrasive for users who want flexible cut-to-length material for finish sanding and surface preparation. This is a sanding abrasive roll designed for fine sanding and controlled surface prep. If you regularly size your own abrasive strips for hand sanding blocks, long boards, or shop fixtures, this format makes more sense than buying stacks of pre-cut pieces.

The big selling point here is the combination of roll length, usable width, and 220 grit. A 220 grit abrasive is typically the step where you refine the surface rather than do heavy stock removal. That makes this a practical choice when you are cleaning up scratch patterns, prepping for paint or coating, or moving toward a smoother final surface without jumping too fine too early.

The 4.5 inch width gives you a versatile strip size that works well when you need coverage without getting too wide for smaller sanding tasks. The 30 foot roll matters if you burn through abrasives steadily in the shop or on the job. Instead of stopping to open new packs of sheets, you can cut exactly what the task calls for and keep moving.

This product uses PSA backing, which means pressure sensitive adhesive. That matters because attachment is direct and secure when paired with the appropriate sanding surface or setup. For users who prefer adhesive-backed abrasives over loose sheets, PSA helps keep the abrasive planted where it belongs during repetitive sanding work.

Mirka's Iridium line is well known among serious finish users for sanding applications where consistency matters. In practical terms, this roll format is a good fit for people who want the flexibility of bulk abrasive material while staying within a recognized premium sanding family. It is especially useful in shops where custom strip lengths are part of the routine.

Who should buy it? Anyone doing repeat fine sanding who benefits from a cut-to-fit abrasive roll instead of pre-sized sheets. That can include woodworkers, finish carpenters, cabinet shops, paint and body users, and serious DIYers who already know their preferred backing style and grit progression. If you need aggressive removal, this is not the grit for that. If you need a finer finishing step in a PSA roll, this is right in the zone.

Mirka Iridium 4.5" x 30' PSA 220 Keeps Fine Sanding Simple

This is the kind of abrasive roll that makes sense when you know exactly how you like to prep a surface and do not want to be boxed into pre-cut sheets.

• Who it's for: Woodworkers, finish users, body shop techs, and serious DIYers who want a fine-grit PSA sanding roll they can cut to fit.
• Why it stands out: The Iridium name, 220 grit finish focus, and 4.5 inch x 30 foot roll format make it a practical option for repeat sanding work.
• Worth knowing: This is a finishing and prep grit, not a heavy removal grit, so buy it for refinement work instead of rough shaping.

• What type of abrasive is this? This is a PSA sanding abrasive roll from Mirka's Iridium line.
• What grit is it? It is 220 grit, which is generally used for finer sanding and surface refinement.
• How large is the roll? The roll measures 4.5 inches wide by 30 feet long.
• Where is it made? Source data lists Finland as the country of origin.