The Mirka AE24105012 Autonet Grip Disc, 120G, 6 in. is a 150 mm net sanding disc designed for automotive refinishing and general surface prep. This is a sanding disc designed for dust-reduced sanding on primer, paint, filler, plastics, and similar surface materials. Model Number: AE24105012. If you want a cleaner cut, less loading, and more consistent scratch pattern during sanding, this is the kind of abrasive that earns its keep fast.

What makes the Autonet line different is the abrasive surface itself. Instead of a traditional solid paper or film disc with a few holes punched in it, Mirka uses a dense net structure that allows dust extraction across the full face of the disc. In real use, that matters because fine sanding dust has fewer places to pack in and clog the abrasive. You spend less time fighting pilling, less time changing discs early, and more time actually sanding.

The 120-grit rating puts this disc in a useful middle ground for refinishing work. It is aggressive enough for surface leveling and prep work, but still controlled enough for many sanding steps where you need to keep the finish moving in the right direction. According to the source data, it is suitable for plastics, primer, paint stripping and removal, paint sanding, plaster or filler, body filler, glass fiber, and lacquers. That makes it a versatile option for body shop work, repair prep, and other finish-sensitive sanding jobs.

Material construction is another part of the story here. The backing is listed as polyamide net and PES net, with resin-on-resin bonding and aluminum oxide grain. That combination is used because it balances cutting performance with wear resistance. In plain terms, the disc bites early, stays usable longer, and holds up well when you are running through dusty materials that would usually choke a standard disc.

The 6 inch or 150 mm size is a common format for random orbit sanders and similar sanding setups that use a grip-style attachment. That keeps setup simple if you are already running compatible 150 mm backing pads. Grip attachment also makes disc swaps quick, which is important when you move through multiple grit steps or bounce between filler, primer, and topcoat prep.

This sanding disc is especially relevant for users who care about finish quality and shop cleanliness. In automotive refinishing, airborne dust is not just a mess. It can affect rework, cleanup time, and the quality of the final surface. A net abrasive helps reduce that problem at the source by moving more dust away from the work area during sanding.

If you are a body tech, painter, prep specialist, or serious DIY user doing paint and filler work, this is the kind of abrasive worth stepping up to. The Mirka AE24105012 Autonet Grip Disc, 120G, 6 in. makes the most sense for users running dust extraction and looking for cleaner sanding, better disc life, and fewer interruptions from clogging. It is not just another round sanding disc. It is a purpose-built abrasive for cleaner refinishing work.

Mirka AE24105012 Autonet Grip Disc Is the Smart Buy for Cleaner Refinishing

If you do paint and body prep, this is one of those upgrades that makes the whole sanding process less annoying and more consistent.

• Who it's for: Body shops, refinish techs, painters, and serious DIY users sanding primer, filler, paint, and plastics.
• Why it stands out: The net abrasive design helps control dust across the full disc surface, which means less clogging and better abrasive efficiency than many standard discs.
• Worth knowing: This product really shines when your setup includes dust extraction, and you need a compatible 6 in. grip backing pad.

• What grit is this disc? This Mirka sanding disc is 120 grit.
• What size is it? The disc diameter is 150 mm, which is 6 inches.
• What materials can it be used on? Source data lists plastics, primer, paint stripping and removal, paint sanding, plaster or filler, body filler, glass fiber, and lacquers.
• What type of backing does it use? It uses a grip-style attachment.