Mirka Galaxy 6-Inch PSA Sanding Discs 150 Grit FY-6PF-150 are pressure-sensitive adhesive sanding discs made for finish sanding and surface prep on wood, metal, and epoxy resin. This is a sanding disc designed for orbital sanding and finishing work where you want a consistent cut and a clean surface. Model Number: FY-6PF-150. If you run a 6 inch sander and want a disc that cuts clean without loading up fast, this is the kind of abrasive worth paying attention to.

The big story here is the abrasive itself. Mirka uses ceramic alumina grain with a self-sharpening design, which means the cutting points keep renewing as the disc wears. In plain terms, that helps the disc stay productive longer instead of feeling spent after a short run. For 150 grit work, that matters because this is often the stage where you want to refine the surface without leaving deep scratches or burning time on discs that stop cutting.

The PSA backing is another practical advantage. A pressure-sensitive adhesive disc gives you a secure hold on the sanding pad and a flat working surface, which is important when you are chasing a uniform finish. Compared to slower changeover setups, PSA discs are straightforward for production work, repeat sanding steps, and any shop process where you are cycling through grit changes and do not want extra downtime.

This Mirka Galaxy disc is also a no-hole design. That makes it the right choice for users and pad setups that call for solid-face PSA discs rather than perforated dust-extraction patterns. If your machine and workflow are built around solid discs, this gives you the correct format without adapting a hole pattern that does not match your setup.

Mirka also calls out a coating that resists clogging. That is especially useful on materials that tend to load abrasives fast, including epoxy resin and some finishes. Less buildup on the face of the disc helps the abrasive keep cutting and helps reduce random surface issues caused by packed debris dragging across the workpiece.

In terms of use case, 150 grit sits in a useful middle zone for refining scratches, leveling surfaces before the next sanding step, and preparing work for a finer finish. On wood, it works well for surface prep and smoothing. On metal, it helps with controlled refining rather than aggressive stock removal. On epoxy resin, where surface quality matters, the combination of self-sharpening grain and anti-clog behavior is a practical fit.

This pack includes 100 discs in a Linkroll format, which makes sense for shops, finish crews, and serious DIY users who go through abrasives regularly. You are not buying a random mixed pack here. You are buying a dedicated 6 inch, 150 grit PSA abrasive for repeatable finish work. That is a better setup when you know exactly what your sander takes and exactly what stage of the sanding process you are stocking for.

If you use Mirka DEROS sanders or another compatible 6 inch orbital sander that accepts PSA discs, this abrasive is aimed right at that workflow. It is a good match for woodworkers, metal fabricators, finish shops, and epoxy resin users who care more about consistent results and disc life than just getting the cheapest disc on the shelf.

Mirka Galaxy 6-Inch PSA Sanding Discs 150 Grit FY-6PF-150 are for people who care about finish quality and hate wasting discs

This is a smart buy for anyone running a 6 inch PSA sander and doing repeat finish work on wood, metal, or epoxy resin.

• Who it's for: Woodworkers, finish shops, fabricators, and resin users who need reliable 150 grit sanding discs in real quantity.
• Why it stands out: Self-sharpening ceramic grain, anti-clog performance, and a straightforward PSA format that keeps changeovers quick.
• Worth knowing: These are no-hole PSA discs, so make sure your pad setup matches. If you need hook and loop or a dust-hole pattern, this is not the version to grab.

• What type of backing do these sanding discs use? They use a PSA, or pressure-sensitive adhesive, backing.
• Do these discs have dust extraction holes? No. This model is listed as a no-hole sanding disc.
• What materials are these discs intended for? The product data lists epoxy resin, wood, and metal as suitable materials.
• Which Mirka sanders are specifically listed as compatible? The product data lists Mirka DEROS 625X CV and Mirka DEROS 650X CV.