5 Inch
4 Inch
Hook & Loop Sandpaper Discs
$34.97
Description
Specifications
Helpful Guides
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Hook & Loop Sandpaper Discs
Built for the Realities of Stone Restoration
When you are grinding out a deep scratch in a black granite vanity or feather-edging a limestone fireplace surround, time is money and consistency is reputation. MB Stone Professional Hook & Loop Sandpaper Discs give stone contractors a no-nonsense, heavy-duty sanding medium that clips on, cuts fast, and stays flat — job after job.
Made from silicon-carbide resin paper and offered in the four grits stone pros actually use (80, 120, 220, 400) and the two diameters that fit most hand machines (4″ & 5″), these discs keep your workflow focused on productivity instead of consumable management.
Why These Discs Belong in Your Kit
Purpose-Built for Stone
Many “hook-and-loop” discs on the market are engineered for woodworking or auto-body prep; they load quickly on dense calcium-based materials and burnish instead of cutting.
MB Stone discs are matched to granite, marble, limestone, and travertine, so the abrasive stays sharp and the scratch pattern stays predictable, even on crystalline structures that chew through generic sandpaper.
Silicon Carbide Resin Paper – Fast, Cool Cutting
Silicon-carbide’s friable crystal structure fractures under heat, constantly exposing fresh, sharp edges. Bonded with a resin over resin system, the grain resists glazing so you get a cooler grind and a cleaner finish that transitions smoothly to resin diamonds or polishing powders.
Instant Disc Changes
Hook-and-loop backing means you can take off an 80-grit disc after an aggressive cut and put on a 120 in seconds. That translates to fewer interruptions, tighter time-lines, and healthier margins.
Available in Convenient Grit Sizes
The 80-120-220-400 sequence mirrors the progression pros use ahead of honing powders or diamond-impregnated pads, eliminating guesswork and duplicated inventory.
Technical Specifications
|
Parameter |
Detail |
|
Abrasive grain |
Silicon carbide resin-bond paper |
|
Backing attachment |
Hook & loop (Velcro® style) |
|
Available diameters |
4 inch (100 mm), 5 inch (125 mm) |
|
Available grits |
80, 120, 220, 400 |
|
Recommended surfaces |
Granite, marble, limestone, travertine |
|
Typical applications |
Grinding, scratch removal, edge repair |
Where These Discs Excel
Field Resurfacing & Scratch Removal
Running a 17″ planetary is overkill on many residential calls. Pair a variable-speed 4″/5″ hand machine with these discs and you can spot-level etches, lippage, and drill-bit blow-outs without dragging in floor gear.
Countertop Edge Work
Bull-nose and ogee profiles hold less water and polish more evenly when the initial sanding passes are flat and controlled. The discs’ uniform resin bond lets you maintain shape without chatter.
Seam Flush-Out & Repair Prep
Use 80- or 120-grit to flush polyester seams or epoxy fills fast, then jump to 220 and 400 before switching to resin diamonds for a blur-free finish.
How to Select & Use MB Hook & Loop Sandpaper Discs
Identify the Stone & Its Condition
Read the mineral matrix: coarse crystalline granite demands a fresh 80-grit start; honed limestone with toner stains may only need a 220 touch-up.
Choose the Starting Grit
-
Deep scratches/high lippage: 80-grit
-
Tool marks/minor chips: 120-grit
-
Hone refinement: 220-grit
-
Pre-polish cleanup: 400-grit
Mount the Disc Securely
Align the disc’s center with the backing pad and press firmly to engage the hooks. A centered disc minimizes vibration and extends pad life.
Grind with Controlled, Overlapping Passes
Run the tool flat, 1,500-2,500 RPM, moderate pressure. Keep the disc and surface damp — silicon carbide cuts cooler and the slurry helps you track progress.
Inspect, Rinse, and Progress Through Finer Grits
After each grit, squeegee the slurry, back-light the surface, and confirm the previous scratch pattern is fully erased before moving on.
Clean, Dry, and Store Discs
Rinse in clean water to release stone fines, flick dry, and store face-to-face to keep hooks uncontaminated for the next job.
Applications & Pro Tips
Spot Repairs on Polished Granite
Finish with 400-grit, then jump straight to MB-20® or a similar granite polishing powder to bring back a mirror-level gloss without dish-out.
Refinishing Honed Marble Shower Seats
Work 120 → 220 → 400 in quick successive passes; the silicon-carbide bite keeps the surface open, letting you finish with a 220-honed look that matches factory pieces.
Edge Profiling on Limestone Hearths
Blend router chatter with 80-grit, refine to 220, and follow with a diamond-impregnated pad for a soft-matte finish that hides in-use wear.
FAQs
Are the discs reusable?
Yes. Rinse accumulated slurry, let them air dry, and re-mount. Lifespan varies with stone hardness and pressure but silicon-carbide’s self-sharpening trait delivers consistent performance for multiple passes.
How do these differ from electroplated diamond discs?
Silicon-carbide papers are ideal for early-stage abrasion where speed and economy matter; electroplated diamonds cut faster on extremely hard stone but cost more and can leave deeper scratches if used incorrectly.
Can I use them on engineered stone or porcelain?
You can, but expect accelerated wear and shorter life on sintered surfaces. For quartz or porcelain slabs, a resin-bond diamond system is usually more efficient.
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