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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 Microfinishing Quality
The 3M Microfinishing PSA Film Disc 366L offers reliable performance with a precision, micron-graded aluminum oxide abrasive. This abrasive ensures a fast cut-rate and long life, making it a preferred choice for professionals. The 3M brand guarantees consistent quality in finishing products.
Designed for various materials, this model 366L disc excels in sanding wood, composites, plastics, and metals. Its durable polyester film backing supports flexibility and tear resistance, ideal for high-production environments.
Precise 100 Micron Grade
This disc features a 100 Mic (3MIL) micron grade that delivers a uniform finish across many substrates. The fine abrasive grade is perfect for multi-step finishing processes, providing smooth results on surfaces like paint prep and corrosion removal.
With this 100 Micron grade, users can achieve consistent sanding results on contoured surfaces. The abrasive’s resin bond supports durability and fast cutting without sacrificing finish quality.
Flexible Film Backing Benefits
The 6 inch polyester film backing offers flexibility to maintain consistent finishing on curved or contoured surfaces. This backing type also provides greater tear resistance compared to paper-backed discs, enhancing durability during use.
Its pressure sensitive adhesive (PSA) backing allows quick attachment and clean removal from backup pads. This feature supports efficient multi-step sanding and finishing workflows without leaving residue.
Open Coat Load Resistance
The disc’s open coat construction spaces abrasive grains to reduce clogging from dust and debris. This design helps maintain aggressive cutting action and extends disc life, especially when sanding softwoods or painted surfaces.
Additionally, the load-resistant coating prevents material buildup, ensuring the disc continues cutting effectively. This results in increased productivity and less frequent disc changes during projects.
Convenient Pack Size Format
Each pack contains 50 discs, and the full case includes 500 discs, making it suitable for high-volume use. The discs come in a die 600Z format, compatible with orbital and random orbital sanders for versatile applications.
The 6 inch x NH size fits standard backup pads, and the PSA film format ensures easy installation and removal. This pack size supports efficient inventory management for industrial or workshop settings.
3M Microfinishing PSA Film Disc 366L, 100 Mic 3MIL, Type D, 6 in x NH, Die 600Z, 50/Pac, Case of 500
3M
$659.95 Per Case
