3M Microfinishing PSA Film Disc Roll 366L, 80 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 the trusted 3M brand. This exact model features a pressure sensitive adhesive backing for easy attachment and clean removal, making it ideal for multi-step finishing processes.

These discs are designed for high-production environments, ensuring consistent results. The 366L model is rated best in the 3M Microfinishing line, providing professionals with a dependable sanding solution.

Precise 80 Micron Grade

Featuring an 80 Mic 3MIL grade, these discs deliver a fast cut and uniform finish. The precision, micron-graded aluminum oxide abrasive is tough and self-fractures to expose fresh cutting edges, extending disc life and efficiency.

This grade works well on a variety of materials including wood, metal, and composites. It supports both sanding and grinding applications, making it versatile for many industrial tasks.

Flexible Durable Backing

The durable polyester film backing provides flexibility for consistent finishing on contoured surfaces. This backing also offers greater tear resistance compared to paper products, enhancing durability during use.

Measuring 5 inches by NH, the backing supports reliable performance under high heat and pressure. This flexibility helps achieve smooth finishes on complex shapes and reduces disc damage.

Convenient Roll Format

These sanding discs come in a roll format with 125 discs per roll and 4 rolls per case. This packaging supports efficient use in busy workshops and high-production settings by minimizing downtime for disc changes.

The roll format also helps keep discs organized and ready for use with orbital and random orbital sanders. It’s a practical choice for professionals needing consistent supply and easy handling.

Open Coat Load Resistance

The open coat construction provides an aggressive cut while reducing loading by allowing dust and debris to escape. This load-resistant coating keeps the disc cutting effectively even on softwoods and paints.

By minimizing clogging, the discs maintain productivity and extend material life. This feature is especially useful when sanding materials prone to clogging abrasive surfaces.