MIRKA® AUTONET DISC

Mirka Autonet abrasive disc: high-performance dust-free sanding

The Mirka Autonet abrasive disc is a game-changer for body shop sanding stations. Its open-mesh structure continuously extracts residue: no more clogging, no more stopping to change discs.

Designed for pre-painting preparation, it tackles primers, body fillers, and paints without generating airborne dust.

Result: a cleaner workshop, a surface that stays active longer, and a significantly longer service life than conventional discs.

What is the Mirka Autonet abrasive disc?

The Mirka Autonet abrasive disc is a sanding disc designed specifically for the automotive and body repair industry. It stands out for its open-mesh structure, which makes it fundamentally different from traditional abrasive discs.

How it works: the abrasive is applied to a net of open-weave fibers. Sanding particles are evacuated directly through the disc, preventing buildup on the surface.

Result: less clogging, less dust, and a significantly extended lifespan compared to a standard abrasive disc.

A unique open-mesh design from Mirka

Mirka developed this technology to address a practical problem at sanding stations: paint and primer dust that clogs discs and pollutes the working environment.

The Autonet open mesh allows for near-total dust extraction, even without a high-performance vacuum backup pad. The sanding surface stays clean for longer.

This design offers several direct advantages:

• Optimal residue evacuation through the mesh openings
• Less heat generated on the workpiece
• Active abrasive surface lasts longer
• Compatible with standard vacuum backup pads
• Significant reduction in airborne particles

It is a disc designed for professionals who want to work fast, cleanly, and without stopping to change discs every five minutes.

Technical specifications and available grits

The Mirka Autonet abrasive disc is manufactured on a polyamide mesh backing. This open fiber network evacuates dust continuously during sanding.

The grain is applied to both sides of the mesh. This provides an abrasive surface active at 360°, which significantly extends the disc's service life.

The disc is compatible with the integrated vacuum systems of Mirka orbital sanders (DEROS, DEROS 5650CV, etc.) as well as other brands equipped with Velcro fasteners and central extraction.

Available grits

• P80, heavy-duty sanding, fast material removal
• P120, intermediate sanding, shaping
• P150, surfacing preparation, bodywork
• P180, finishing before primer
• P240, fine finishing, inter-coat
• P320, finishing sanding, primer smoothing

Product	Backing	Abrasive sides	Dust removal	Main usage
Mirka Autonet	Polyamide mesh	2 sides	Excellent (open structure)	Bodywork, primer, finishing
Mirka Gold	Latex paper	1 side	Good (perforations)	Wood, general bodywork
3M Hookit 255P	Polyester film	1 side	Good (perforations)	Bodywork, metal
Sia Sianet 7500	Polyamide mesh	2 sides	Excellent (open structure)	Bodywork, wood

The standard diameter is 125 mm, a universal size for body shop orbital sanders. 150 mm formats are also available depending on requirements.

Application fields: bodywork, wood, and hard surfaces

The Mirka Autonet abrasive disc is designed to handle a variety of materials. Bodywork, wood, composite, plastic: it adapts without compromise.

Automotive sanding and surface preparation

In automotive bodywork, the Autonet excels in pre-painting preparation. It removes coarse sanding marks and prepares surfaces for an impeccable finish.

Its open network evacuates residue continuously. No clogging, even on soft paints or fresh body fillers.

On wood, it handles both hardwoods and MDF boards equally well. The grain remains active longer than a conventional closed-coat abrasive.

Here are the main applications covered by Dagobert Industrie:

• Sanding of primer and filler in bodywork
• Pre-paint preparation on metal and plastic
• Sanding of solid wood, MDF, and laminate panels
• Heavy-duty sanding and finishing on composite materials
• Sanding of varnished or lacquered surfaces

Product	Target material	Available grits	Key strength
Mirka Autonet	Bodywork, wood, composite	P80, P400	Open network, zero clogging
Mirka Abranet	Wood, paint, varnish	P80, P600	Maximum extraction, long lifespan
3M Hookit 255P	Bodywork, primer	P80, P320	Ceramic abrasive, aggressive cut
Festool Granat	Wood, varnish	P40, P1000	Wide range of grits, fine finish

Mirka Autonet versus other abrasive discs on the market: comparison table

The Mirka Autonet is not an ordinary abrasive disc. Its open-fiber network clearly distinguishes it from classic paper or standard Velcro discs. Here is how it stands up against the competition.

Product	Manufacturer	Backing	Dust evacuation	Available grits	Main usage
Autonet	Mirka	Open polyamide network	Excellent (entire surface)	P80 to P320	Bodywork, primer, filler
Abranet	Mirka	Woven polyester mesh	Excellent	P80 to P500	Wood, metal, multi-material
Gold	Mirka	Perforated latex paper	Good (targeted holes)	P40 to P400	Wood, paint, primer
Festool Granat	Festool	Perforated paper	Good (targeted holes)	P40 to P400	Wood, paint
Klingspor PS 73 BWK	Klingspor	Perforated paper	Fair	P40 to P320	Wood, metal

The key advantage of the Autonet: dust evacuation across the entire surface of the disc, not just at the holes. Clogging is almost non-existent, even on filler or fresh primer.

Compared to Abranet (same manufacturer), the Autonet is optimized for automotive bodywork. Its alumina-zirconia grit handles heat and abrasion better on painted surfaces.

Compared to perforated paper discs like the Festool Granat or the Klingspor PS 73, the Autonet offers a significantly longer lifespan on binder-heavy materials.

Usage tips and compatibility with orbital sanders

The Mirka Autonet disc attaches to any orbital sander equipped with a 125 mm Velcro pad. It is compatible with both pneumatic and electric models.

For optimal results, work at a moderate speed (between 6,000 and 10,000 rpm). Excess speed reduces the disc's lifespan and degrades the finish.

Always connect your sander to a centralized extraction system or a workshop vacuum. This is where the Autonet reveals its full potential: its open mesh continuously evacuates particles without clogging.

Apply light and even pressure. Letting the disc work without pressing hard extends its effectiveness and prevents marks on the surface.

Here are the best practices to remember:

• Check the condition of the Velcro pad before each installation, a worn pad compromises disc grip
• Change the disc as soon as the cutting slows down, without waiting for full clogging
• Match the grit to the surface: 80-120 grit for heavy sanding, 180-320 for finishing
• Avoid wet surfaces: the Autonet is designed for dry sanding

Disc	Technology	Available grits	Main usage	Extraction required
Mirka Autonet	Open mesh	80 to 320	Bodywork, primer, auto finish	Yes (high efficiency)
Mirka Gold	Perforated solid abrasive	40 to 400	Wood, metal, primer sanding	Yes (standard holes)
3M Hookit 255P	Perforated solid abrasive	80 to 320	Bodywork, finishing	Yes (standard holes)
Mirka Abranet	Open mesh	80 to 500	Wood, varnish, plaster, multi-surface	Yes (high efficiency)

FAQ - Mirka Autonet

1. Is the Mirka Autonet compatible with all sanders?

The Mirka Autonet is designed for sanders with centralized extraction, such as Mirka DEROS or DEXOS models. It works with any system featuring Velcro attachment and multi-hole extraction.

2. On what materials can the Mirka Autonet be used?

It is primarily intended for automotive bodywork: primers, fillers, paints. It is also suitable for lacquered wood and plastic surfaces during the finishing phase.

Its open abrasive mesh prevents clogging, even on freshly painted or still slightly soft surfaces.

3. What is the difference between Mirka Autonet and Mirka Galaxy?

The Mirka Galaxy is a ceramic abrasive disc, more aggressive, built for heavy sanding on bodywork and metal. The Autonet focuses on finishing and light preparation.

The Autonet also generates much less dust thanks to its mesh structure, whereas the Galaxy remains a classic solid disc.

4. Does the Mirka Autonet really reduce dust?

Yes. Its open net structure allows for near-total extraction of sanding residue. When paired with a sander equipped with an extractor, it captures up to 99% of dust according to Mirka.

This is a tangible benefit for body technicians: less cleanup, less exposure to dust, and better visibility of the work in progress.

5. Which grits should I choose for my application?

For heavy sanding of a filler or primer, start with P80 to P120. To smooth before painting, go up to P180 to P320. Finishing before varnish is done at P400 and above.

At Dagobert Industrie, we offer the Autonet in a wide range of grits to cover the entire body preparation chain.

6. What is the service life of the Mirka Autonet compared to a classic disc?

Thanks to its anti-clogging properties, the Autonet retains its abrasive power for much longer than a standard solid disc. Fewer discs changed = less time lost in the workshop.

On coated or painted surfaces, the longevity difference is particularly noticeable compared to traditional abrasives like standard Sia or Norton discs.