Mirka Gold vs Royal Micro Discs: Which Finish Do You Need?
By Supergrit Abrasives | Published: 2026-10-31
Category: Comparisons
Mirka Gold hook and loop discs cut fast and work through grits, while Mirka Royal Micro PSA discs in 1200 and 1500 refine the final finish. Choose by the surface you need, not the brand name.
Quick answer
Use Mirka Gold hook and loop discs when you need to cut through material and step through grits on wood, paint, primer, filler, composites or metal. Switch to Mirka Royal Micro PSA discs in 1200 or 1500 grit only when the surface is already shaped and you need a fine final finish.
The real split is backing and grit range, not brand tier
Mirka Gold discs are hook and loop, so you can swap grits on the same backup pad and reuse the disc until the grain dulls. Royal Micro discs use pressure-sensitive adhesive and are listed only in 1200 and 1500 grit, which places them at the end of the sequence rather than at the start.
That difference matters more than the name on the box. Hook and loop rewards fast changes during coarse and intermediate sanding. PSA rewards a flat, dedicated pass at fine grit, where a disc that stays put and lies flat helps avoid stray scratches.
Where each disc earns its place
Mirka Gold's aluminum oxide grain is described for fast cutting and long life across wood, paint, primer, fillers, composites and metal. It is the disc you reach for when the surface still has shape to correct or old finish to remove.
Royal Micro is a 5-inch PSA disc in 1200 and 1500 grit, sold in packs of 50. It suits the last refinement step on a surface that is already sanded and flat, where you want a consistent scratch pattern before polishing or coating.
The trade-off you accept with each
Hook and loop discs can shift slightly under heavy pressure and the backing can wear over time. PSA discs hold flat but are harder to reposition, and adhesive residue can build up if you peel and re-stick them repeatedly.
Royal Micro's narrow grit range is also a limitation: it cannot replace a full grit sequence. If you jump from a coarse scratch straight to 1200, the finer disc will polish the peaks without removing the valleys, and the scratch will still show after finishing.
Decision rules for choosing between them
- If the surface still needs shaping: Start with Mirka Gold in the coarse and middle grits on your hook and loop backup pad. Switch grits as the scratch pattern from the previous disc disappears. Do not open the Royal Micro pack until the surface is flat and evenly sanded.
- If you are at the final refinement step: Apply Royal Micro 1200 first, check the scratch pattern under raking light, then move to 1500 only if the surface needs further blending. A 5 inch PSA disc needs a clean, flat backup pad; dust or old adhesive will telegraph through.
- If you are matching disc to sander: Choose the Gold disc diameter that fits your sander's pad. Royal Micro is supplied in 5 inch only, so confirm your pad size before relying on it for final finish.
- If you need one disc for everything: Neither disc covers the full sequence alone. Gold handles cutting and intermediate work; Royal Micro handles only the fine end. Buy both when the job runs from raw surface to final finish.
Product facts
- 5", 6" & 8" SOLID H&L MIRKA GOLD DISCS: Mirka Gold hook and loop discs come in 5, 6 and 8 inch sizes with selectable grit and quantity. You can match the disc to your sander and build a grit sequence instead of buying a single fixed size.
5", 6" & 8" SOLID H&L MIRKA GOLD DISCS - 5" SOLID PSA Mirka Royal Micro Abrasive Discs: Mirka Royal Micro discs are 5 inch PSA discs offered in 1200 and 1500 grit, in packs of 50. They are a dedicated fine-finishing step, so plan them after your intermediate grits rather than as a standalone abrasive.
5" SOLID PSA Mirka Royal Micro Abrasive Discs
Who should choose which
Best for
- Woodworkers and refinishers stepping through grits on wood, paint, primer, filler, composites or metal
- Anyone using a hook and loop backup pad who wants to change grits quickly
- Final-finish work on a flat 5 inch surface where a PSA disc stays put
Not for
- Removing material or correcting shape with a 1200 or 1500 grit disc
- Sanding a surface that still has coarse scratches from an earlier step
- Operators who need a 6 or 8 inch disc for final refinement, since Royal Micro is listed in 5 inch only
