3M Microfinishing PSA Film Disc Roll 366L, 180 Mic, 3MIL, Type D, 5 in x NH, Die 500X, 125 Discs/Roll, 4 Rolls/Case

• Adhesive backing for easy attachment
• Durable polyester film backing provides flexibility for consistent finishing on contoured surfaces
• Load-resistant coating prevents dust and debris from clogging the disc
• Open coat construction provides aggressive cut and reduced loading
• Precision, micron-graded aluminum oxide abrasive offers a fast cut, long life, and uniform finish on many substrates
• Pressure sensitive adhesive backing allows quick attachment and clean removal for multi-step finishing processes

3M Microfinishing PSA Film Disc Roll 366L include multiple sanding discs packaged in a roll for convenience and use in high-production environments. These discs are rated Best in the 3M Microfinishing line of film backed discs.

We gave these discs premium, micron-graded aluminum oxide abrasive, which is bonded to a durable polyester film backing to produce a fast cut-rate and uniform finish on wood, solid surface composites, plastic, fiberglass, paint prep, coating and corrosion removal, primer, e-coat, metal, or where loading is an issue. An anti-load coating and open coat surface increase efficiency and product life by minimizing loading. The abrasive is resin-bonded and supports disc flexibility without sacrificing durability and reliable performance under high heat and pressure. To compliment the effective abrasive action, the polyester film backing flexes to help achieve a consistent finish over contours and offers greater tear-resistance than comparable paper products, making it ideal for high-production environments. And the pressure sensitive adhesive (PSA) provides easy attachment, holds the disc securely in place during use, and removes cleanly from the backup pad (sold separately). Designed for use with orbital and random orbital sanders, this disc comes in a range of micron grades and dust free option for complete multi-step sanding and finishing.

Our 3M™ Microfinishing PSA Film Disc Roll 366L features precision, micron-graded aluminum oxide, which is a popular choice among industrial professionals because of its fast cut-rate and long life. This mineral makes a tough, durable abrasive that self-fractures to expose fresh cutting edges, whereas traditional natural abrasives dull more quickly. Due to its fast cut-rate, hardness, and strength, it is widely used in grinding applications in addition to sanding and finishing applications. Aluminum oxide is suitable for a wide variety of materials in both woodworking and metalworking, including ferrous alloys.

Sanding discs cut better and last longer when dust isn't clogging the cutting surface of the abrasives. Open coat construction means the abrasive grains are placed with space between them to help evacuate sawdust and other sanding debris and avoid clogging the cutting edge of the grains. The load-resistant coating also allows the disc to continue cutting even when sanding softwoods, paints, and other materials that would, otherwise, clog the disc and hinder sanding ability. Additionally, the open coat feature provides a more aggressive cut than a comparable closed coat abrasive of the same grade. All of this adds up to increased productivity and reduced material consumption.

Our 3M™ sanding discs come in a variety of forms to fit various power tools and disc pads. These high-quality abrasive products come ready to use with a pressure sensitive adhesive coating on the backside so they conveniently press on to a backup pad or hand pad, and remove cleanly, leaving an uncontaminated surface for the next sheet or disc.

Trusted 3M Microfinishing Quality

The 3M Microfinishing PSA Film Disc Roll 366L offers reliable performance with its premium brand and model. This product is designed for professionals who need consistent results in finishing tasks. The 366L model ensures you get the trusted quality 3M is known for in abrasive solutions.

Ideal for various finishing jobs, this roll format provides convenience and efficiency. The product includes 125 discs per roll, making it suitable for high-production environments where reliability and consistency matter.

Precise 180 Micron Grade

Featuring a 180 Micron abrasive grade, this disc roll delivers a fast cut and uniform finish. The micron-graded aluminum oxide abrasive is precision-made to offer long-lasting performance. This grade is perfect for detailed sanding and finishing on multiple surfaces.

Users benefit from the consistent cut rate and durability of the 180 Micron discs. Whether working on wood, metal, or composites, this grade balances aggressiveness with a smooth finish, making it versatile for many applications.

Flexible 3MIL Film Backing

The 3MIL polyester film backing provides flexibility and tear resistance. This backing supports consistent finishing on contoured surfaces without sacrificing durability. It’s designed to flex with the workpiece, ensuring even sanding results.

Thanks to the film backing, these discs resist tearing better than paper-backed alternatives. This makes them ideal for demanding jobs and high-production use, where durability and flexibility are essential.

Efficient 5 Inch Size

Each disc measures 5 inches in diameter, a common size compatible with many orbital and random orbital sanders. This size offers a good balance between coverage and control during sanding tasks. It’s suitable for both small and larger surface areas.

The 5 inch discs fit well on standard backup pads, making them easy to attach and remove thanks to the pressure sensitive adhesive. This size supports multi-step finishing processes efficiently.

Convenient 125 Discs Roll

The product comes as a roll containing 125 discs, with 4 rolls per case. This packaging format is designed for ease of use and storage, reducing downtime in busy workshops. It’s perfect for users who require a steady supply of sanding discs.

Having multiple rolls per case ensures you’re well stocked for extended projects. The roll format also helps maintain disc condition and simplifies handling compared to loose sheets or discs.