Indasa White Discs vs Mirka Galaxy Ceramic: 8" H&L Comparison
By Supergrit Abrasives | Published: 2026-11-03
Category: Comparisons
Compare Indasa white 8-inch hook-and-loop discs and Mirka Galaxy ceramic 6-inch discs on size, grain, and cost. See which fits your sander and stock removal needs.
Quick answer
Choose Indasa white 8-inch hook-and-loop discs if your sander takes 8-inch paper and you want a lower-cost, finer-grit option for finishing. Choose Mirka Galaxy ceramic discs if you run a 6-inch sander and need aggressive, long-lasting cutting on harder materials.
Size and hole pattern decide fit before anything else
The Indasa discs are 8 inches with an 8-hole pattern, while the Mirka discs are 6 inches. That difference is not interchangeable: an 8-inch disc will not mount safely on a 6-inch backup pad, and a 6-inch disc leaves the outer edge of an 8-inch pad uncovered. Check your sander's pad diameter and dust-hole layout first. The Indasa listing specifies an 8 outer hole configuration; the Mirka listing does not state a hole pattern, so confirm your pad's hole alignment before ordering the Mirka discs.
Grain type changes how the disc behaves as it wears
Mirka Galaxy discs use self-sharpening ceramic grain, which continuously exposes fresh cutting edges as the abrasive wears. That generally means faster cutting and a longer useful life on tough stock removal. The Indasa white discs are available in 120 and 150 grit, placing them in the finishing and light-refinishing range rather than heavy removal. If you need to strip material quickly, the ceramic disc is the more suitable tool; if you are refining a surface before coating, the finer Indasa grits make more sense.
Price and pack size affect the real cost per disc
The Indasa discs come in a pack of 50 at a catalog price of USD 18.90, compared with a catalog comparison price of USD 30.00. The Mirka discs are priced at USD 28.80 against a comparison price of USD 40.00. Those figures are not directly comparable until you match grit and quantity, because the Mirka listing does not state a pack count in the supplied facts. Calculate cost per disc for the grit and quantity you actually need rather than comparing pack prices alone.
Trade-offs to weigh before you buy
- Size vs. coverage: The 8-inch Indasa disc covers more area per pass but only fits 8-inch sanders. The 6-inch Mirka disc fits the more common 6-inch pad but requires more passes to cover the same surface. Measure your backup pad before ordering; neither disc can be trimmed to fit the other size safely.
- Cutting speed vs. finish range: Mirka Galaxy ceramic grain is designed for aggressive, long-lasting cutting. Indasa white discs top out at 150 grit, which is a finishing range rather than a stock-removal range. If your work spans coarse stripping and fine finishing, you may need both disc types rather than one compromise.
- Upfront price vs. cost per disc: The Indasa 50-pack at USD 18.90 gives a low cost per disc for fine-grit finishing. The Mirka discs at USD 28.80 may cost more per disc, but ceramic grain can outlast standard abrasives on hard materials. Compare cost per disc at the grit you use most, not the pack price alone.
Product facts
- 8" 8 OUTER HOLE H&L INDASA WHITE DISCS: 8-inch hook-and-loop discs with an 8 outer hole pattern, available in 120 and 150 grit in a pack of 50. The large diameter and fine grits suit wide finishing passes on an 8-inch sander, and the 50-pack keeps you supplied for longer runs.
8" 8 OUTER HOLE H&L INDASA WHITE DISCS - 6" SOLID H&L MIRKA GALAXY CERAMIC DISCS: 6-inch hook-and-loop discs with self-sharpening ceramic grain. The ceramic grain keeps cutting as it wears, which helps on harder materials where standard abrasives dull quickly.
6" SOLID H&L MIRKA GALAXY CERAMIC DISCS
Which disc fits your work
Best for
- Operators with an 8-inch hook-and-loop sander doing finishing passes in 120 or 150 grit
- Shops that want a low cost-per-disc option for large-surface prep before coating
Not for
- 6-inch sanders, where the 8-inch Indasa disc will not fit
- Heavy stock removal on hard materials, where a coarser ceramic disc is more appropriate
