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Product Description
- 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
We gave these discs an anti-load coating and open coat surface to 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 for complete multi-step sanding and finishing.
Our 3M™ Microfinishing PSA Film Disc 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 Model Quality
The 3M Microfinishing PSA Film Disc 366L is a reliable choice for finishing tasks. This model features a pressure sensitive adhesive backing that makes attachment quick and removal clean, ideal for multi-step finishing processes.
Its durable polyester film backing provides flexibility, allowing consistent finishing on contoured surfaces. The 366L disc is designed to deliver a uniform finish across various materials, making it a versatile tool in your sanding kit.
Precise Micron-Grade Abrasive
This disc uses a 100 Mic 3MIL precision, micron-graded aluminum oxide abrasive. This abrasive is known for its fast cut rate and long life, offering a smooth and uniform finish on many substrates including wood and metal.
The aluminum oxide mineral self-fractures to expose fresh cutting edges, maintaining performance over time. This makes the 366L suitable for both woodworking and metalworking applications, including ferrous alloys.
Effective Open Coat Design
The open coat construction of the 3M 366L disc spaces abrasive grains to reduce clogging from dust and debris. This design supports aggressive cutting and helps maintain sanding efficiency over extended use.
Additionally, the load-resistant coating prevents dust buildup, allowing the disc to cut effectively even on softwoods, paints, and other clog-prone materials. This increases productivity and reduces material waste.
Optimal Size And Format
Measuring 5 inches in diameter with a NH arbor hole, this disc fits many orbital and random orbital sanders. The Type D format ensures compatibility with a variety of power tools and backup pads.
The film disc format offers tear resistance and flexibility, outperforming paper-backed alternatives. This size and format combination makes the 366L a practical choice for high-production environments.
Convenient Pack Count Options
Available in packs of 50 discs per bag and 500 discs per case, the 3M Microfinishing PSA Film Disc 366L supports both small and large scale projects. This packaging helps maintain supply and reduces downtime.
The bulk pack count is ideal for industrial use or frequent sanding tasks, ensuring you have enough discs on hand for continuous work without frequent reordering.
3M Microfinishing PSA Film Disc 366L, 100 Mic 3MIL, Type D, 5 in x NH, Die 500X, 50/Bag, Case of 500
3M
$438.02 Per Case
