Mirka Galaxy Perforated Sanding Roll FY-570-120 is a hook and loop abrasive roll built for finish sanding on epoxy resin, wood, and metal. This is a perforated sanding roll designed for surface prep and finish sanding with compatible sanding blocks and 2.75 inch wide sanders. Model Number: FY-570-120. If you want one roll that gives you consistent cut, quick sheet changes, and less clogging during longer sanding sessions, this is the kind of abrasive that earns its spot in the shop.

The core of this Mirka abrasive is ceramic alumina grain in a 120 grit format. That matters because 120 grit sits in a useful middle ground for refining surfaces without being too aggressive for follow-up finishing steps. On epoxy resin, it helps flatten and refine without leaving a rough mess behind. On wood, it works well for general prep between heavier stock removal and finer finish sanding. On metal, it gives you a controlled scratch pattern for cleanup and prep work.

Mirka's Galaxy line is built around self-sharpening ceramic grain and a non-clogging anti-adhesive coating. In plain terms, the abrasive keeps exposing fresh cutting edges as it wears, instead of going dull all at once. That means the roll stays productive longer, especially on materials that tend to load paper fast. The anti-clogging coating also helps keep dust and residue from packing into the abrasive surface too early, which can save both time and sheets over the course of a job.

The format is just as important as the abrasive. This roll measures 2.75 inches wide by 33.5 feet long and is perforated every 2.75 inches, giving you 146 sheets per roll. For anyone using a hand sanding block or a narrow-profile sanding tool, that setup is practical. You pull what you need, tear it cleanly at the perforation, and get back to work. It is a simple system, but on repetitive sanding tasks it speeds things up and cuts waste compared to trimming larger sheets down by hand.

The perforated hole pattern is there for more than looks. Dust extraction matters in sanding because loaded abrasive cuts slower and leaves a less consistent finish. The perforations help the abrasive work with compatible sanding blocks and sanders that use dust collection through the pad. That helps keep the cutting surface clearer, which is one of the reasons this type of sanding sheet tends to hold its finish quality better over longer runs.

Attachment is hook and loop, so sheet swaps are quick and clean. That is a real benefit if you're changing often during finishing steps or moving between different blocks and tool lengths. According to the source data, the roll is designed to fit 2.75 inch wide sanders and hand blocks of varying lengths, including 5 inch, 8 inch, and 16 inch formats. For a shop that uses multiple sanding blocks, one roll can cover a lot of day-to-day prep work without forcing you into one exact sheet size.

Who is this for? This Mirka sanding roll makes the most sense for painters, finish carpenters, woodworkers, auto body users, boat and epoxy workers, and serious DIY users who care about surface quality. If you are doing detailed hand sanding, flattening filler or resin, or prepping wood and metal before the next step, the combination of ceramic cut, perforated convenience, and hook and loop backing is the real value here. It is not just sandpaper in a roll. It is a job-ready abrasive system for people who go through sheets and want them to keep working.

Mirka Galaxy Perforated Sanding Roll FY-570-120 Keeps the Small Stuff Moving

This is the kind of abrasive roll that makes sense when you do enough sanding to care about cut life, clean tear-off sheets, and a finish that stays consistent.

• Who it's for: Anyone doing regular hand block sanding on wood, metal, or epoxy resin and wanting better performance than basic sandpaper rolls.
• Why it stands out: The ceramic grain, anti-clogging surface, hook and loop backing, and pre-perforated 2.75 inch format make it fast to use and easier to keep productive.
• Worth knowing: This is a narrow-format sanding roll, so make sure your block or sander is set up for 2.75 inch wide sheets before you order.

• What grit is this roll? This Mirka sanding roll is 120 grit.
• What materials is it intended for? Source data lists epoxy resin, wood, and metal as compatible materials.
• How large is the roll? The roll measures 2.75 inches wide by 33.5 feet long.
• How many sheets does one roll provide? The roll is perforated into 146 sheets.
• What does it attach to? It uses hook and loop backing and is intended for compatible 2.75 inch wide sanding blocks and sanders.