3M™ Diamond Microfinishing Film Sheet 675L

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Micron-graded diamond mineral delivers a wide range of surface finishes and stock removal for all customer requirements

Can be used with coolant

Works well on a variety of hard-to-grind materials

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Safety Data Sheet (PDF, 0B)

Details

Highlights
  • Micron-graded diamond mineral delivers a wide range of surface finishes and stock removal for all customer requirements
  • Can be used with coolant
  • Works well on a variety of hard-to-grind materials
  • Film backing has flexibility to finish highly contoured surfaces

The 3M™ Diamond Microfinishing Film Sheet 675L features diamond mineral adhered to a polyester film backing. It is designed for finishing hard materials including thermal spray coatings, ceramics, carbides, chilled iron, granite and others.

3M™ Diamond Microfinishing Film Sheet 675L
Compared to stones, 675L film can cut superfinishing time in half or more
Finding a Superior Finish
Our 3M™ Diamond Microfinishing Film Sheet 675L comes in a variety of grades — 9, 20, 30, 45, 74 and 125 micron to suit user needs. It is designed for use in thermal spray grinding and finishing projects. This product is made with diamond mineral that is designed to improve productivity and reduce the cost of finishing hard materials such as thermal spray coatings, ceramics and others. Additionally, this sheet delivers superior flexibility and 675L film sheets can be used to finish highly contoured thermal sprayed surfaces such as progressive cavity pumps and extruder screws.

Polyester-Backed Diamond Abrasive can be Run Wet or Dry
The polyester film backing supports both uniform finishes and aggressive cut rates. It is tear-resistant and non-compressible. The polyester backing is also water resistant so the sheet may be run with coolant if desired. Coolant is a desirable component for diamond polishing, since it efficiently cools both the work and the abrasive.

Tips for Achieving Desired Roughness Average
This is available in grades ranging from 125 to 9 micron giving users the range of grades for a variety of finish and stock removal needs. Collectively, these features make our 3M™ Diamond Microfinishing Film Sheet 675L an efficient, economical alternative in most applications. Since the introduction of 3M Microfinishing Film decades ago, 3M has continued to provide consistent quality and the highest performance, while adding the features for our customers' benefit.

Learn More About Microfinishing and 3M Superabrasives (PDF, 1.95 Mb)

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.