Mirka Q.Silver Sanding Discs - 77mm - P180 Grit - 20 Pack

These Mirka Q.Silver sanding discs are designed for high-performance automotive refinishing and ge...

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eBayMirka Q.Silver 77mm (3"") P180 Grit 20x Plain HookNLoop Sanding Discs
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OnBuy.comMirka Q.silver 77Mm (3") P180 Grit 20X Plain Hooknloop Sanding Discs 3513363674643
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Product Information

Full details

The Mirka Q.Silver P180 77mm sanding discs are ideal for automotive refinishing professionals and DIY enthusiasts requiring efficient material removal and a uniform surface profile. These discs offer aggressive cutting power and excellent heat resistance for consistent performance on diverse surfaces; however, users should note that the P180 grit is a medium-coarse abrasive, making it better suited for initial leveling rather than final finishing work.

All features

Model Part Number366JT09918-20
BrandMirka

Extended Product Information

FAQs

Are these discs compatible with all 77mm sanders?

Yes, as long as your sander uses a standard hook-and-loop attachment system.

Can I use these for wet sanding?

Q.Silver discs are primarily designed for dry sanding applications.

How many discs come in a pack?

This package contains 20 individual sanding discs.

What is the primary use for P180 grit?

P180 is typically used for intermediate sanding, such as leveling body filler or sanding primers.

Do these discs have vacuum holes?

These discs are standard Q.Silver series; please verify the specific perforation pattern against your backing pad requirements.

Troubleshooting

Disc is slipping or detaching from the backing pad

Ensure the backing pad is clean and free of dust before attaching. If the pad's hooks are worn, replace the backing pad.

Disc is clogging too quickly

Reduce your sanding pressure and ensure your dust extraction system is operating at full capacity to clear particles.

Visible swirl marks on the surface

Verify that you are using the correct orbit diameter for your sander and ensure you are not tilting the sander at an angle during operation.

Pros and Cons

Pros

  • Quick and secure attachment via hook-and-loop system
  • Consistent abrasive surface ensures a uniform scratch pattern
  • Resists heat buildup during heavy material removal
  • Compact 77mm size allows for high maneuverability

Cons

  • Not suitable for final high-gloss finishing stages
  • Requires a 77mm backing pad for compatibility
  • Limited to smaller area coverage compared to larger disc formats

Setup, Compatibility & Care

To begin, ensure your orbital sander is equipped with a 77mm diameter hook-and-loop backing pad. Simply align the holes if using a dust-extracted setup and press the disc firmly against the pad to engage the hook-and-loop system. After use, inspect the disc for significant accumulation of debris; if clogged, tap the disc against a firm surface or use a rubber cleaning stick to extend its lifespan. Store the discs in a cool, dry environment to prevent the backing material from losing its adhesive properties and to ensure the abrasive grit remains intact.

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