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  6. 3M™ Microfinishing Film Sheet 373L, 60 Mic, Config

3M™ Microfinishing Film Sheet 373L, 60 Mic, Config

  • 3M Product Number 373L
  • 3M ID 7100047399

Strong polyester-film backing and can be run wet

More aggressive anti-slip coating to prevent film slippage

Use on all metals as well as soft or hard rubber, plastic and composites

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Frequently viewed resources
Safety Data Sheet (PDF, 0B)

Details

Highlights
  • Strong polyester-film backing and can be run wet
  • More aggressive anti-slip coating to prevent film slippage
  • Use on all metals as well as soft or hard rubber, plastic and composites
  • Available in a range of grades to help operators achieve stock removal and finish requirements

The 3M™ Microfinishing Film Sheet 373L quickly cuts, shapes and polishes, delivering uniform, close-tolerance finishes on metal parts as well as rubber, plastic, and composites. Premium aluminum oxide mineral is resin-bonded to a 5 mil, high-strength polyester film backing that provides durability and flexibility for consistent finishing on contoured surfaces. Use wet or dry.

Achieve Close-Tolerance Finishes
Our 3M™ Microfinishing Film Sheet 373L features precision, micron-graded aluminum oxide, resin-bonded to a high-strength, resilient polyester film backing to produce a fast cut-rate and precise, uniform finish on metal, solid surface composites, rubber and plastic. The film backing has a friction coating made with quartz mineral.

To complement 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. The strength of the backing, combined with the uniformity of the mineral, helps produce a consistent finish each time you sand.

Aluminum Oxide Suits Many Surfaces
We gave 373L products 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. 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.



See more Woodworking solutions. (PDF, 20.55 Mb)

Learn more about Metalworking solutions.(PDF, 12.95 Mb)

Run It Wet or Dry
Coolant generally extends abrasive life, increases cut rate, prevents loading, and reduces air-borne particles. The high-strength, film backing with anti-slip coating maintains its strength and flexibility when run wet, while paper or cloth can disintegrate.

3M™ Microfinishing Films
Product Mineral Backing Caliper
(0.001")
Backside Grades (Microns)
9 15 20 30 40 45 50 60 74 80 100 125
372L Aluminum
Oxide
5 Type S      
372L Type 2*
(colored)
Aluminum
Oxide
5 Type S          
373L Aluminum
Oxide
5 Type Q      
373L Type 2*
(colored)
Aluminum
Oxide
5 Type Q          
382L Type 2
(colored)
Aluminum
Oxide
6 Type S              
362L Aluminum
Oxide
3 Type S          
272L** Aluminum
Oxide
5 Type S      
472L Silicon
Carbide
5 Type S              
675L Diamond 5 Type S                
Diamond 6 Type S                    

*Suggest to specify the 372L or 373L type 2 (colored) film whenever possible to assist with Error-proofing.
**European Lead Product. Plus wide rolls and belts globally.

Typical properties

Resources

For industrial/occupational use only. Not for consumer sale or use.

3M industrial and occupational products are intended, labeled, and packaged for sale to trained industrial and occupational customers for workplace use.  Unless specifically stated otherwise on the applicable product packaging or literature, these products are not intended, labeled, or packaged for sale to or use by consumers (e.g., for home, personal, primary or secondary school, recreational/sporting, or other uses not described in the applicable product packaging or literature), and must be selected and used in compliance with applicable health and safety regulations and standards (e.g., U.S. OSHA, ANSI), as well as all product literature, user instructions, warnings, and other limitations, and the user must take any action required under any recall, field action, or other product use notice.  Misuse of 3M industrial and occupational products may result in injury, sickness, death, or property damage.  For help with product selection and use, consult your on-site safety professional, industrial hygienist, or other subject matter expert.