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3M™ Microfinishing Film Sheet 362L

  • High-strength polyester film backing reinforces abrasive durability
  • Aluminum oxide mineral
  • Sheet may be cut and shaped for hand pads or back up pads
  • Available in a range of grades
Micron Grade
Products Available
Available options:
 Micron Grade
All Options
Attribute Name
Abrasive Material
Aluminum Oxide
Finishing, Sanding
Backing Material
Polyester Film
Backing Thickness (Imperial)
3 mil
Color Family
Blue, Green
Equipment - Machines
Random Orbital Sanders
For Use On
Composites, Glass, Paint
AOEM, General Industrial, Metalworking, Paint Preparation, Precision Grinding & Finishing, Transportation & Heavy Equipment
Micron Grade
30 μm, 40 μm, 9 μm
Overall Length (Imperial)
11 in
Overall Length (Metric)
279.4 mm
Overall Width (Imperial)
8.5 in
Overall Width (Metric)
215.9 mm
Product Color
Blue, Green, Light Blue
Product Form
Composites, Glass, Paint
Product Details
  • High-strength polyester film backing reinforces abrasive durability
  • Aluminum oxide mineral
  • Sheet may be cut and shaped for hand pads or back up pads
  • Available in a range of grades
  • Color-coded by grade to reduce the risk for error during multi-step sequences

3M™ Microfinishing Film Sheet 362L is a fast-cutting abrasive made with aluminum oxide mineral and a polyester film backing.

Made for Microfinishing
Combining the strength of the polyester film backing with the aggressive cutting qualities of micron-graded aluminum oxide mineral, 3M™ Microfinishing Film Sheet 362L is a good match for workpieces that require precise, uniform, close-tolerance finishes. From turbine engines to metal implants, or from builders' hardware or medical instruments, industrial professionals value part integrity. Microfinishing is one application that is very consistent and predictable. It can remove damaged or amorphous layers to improve the surface finish and roundness of the part.

Learn more about Metalworking solutions(PDF, 12.95 Mb)

3M™ Microfinishing Film 362L is good for microfinishing as it comes in a wide range of grades, so operators can choose the right grade for their part. The grades are also color coded to help operators reduce the risk for error when there are multiple grades in a sequence. It may be used on a variety of substrates, including clear coats, gelcoats, soft and hard composites, metals, softwoods and hardwoods, primer, fiberglass, sealers, paint, solid surfaces and particle board.

Learn more about Woodworking solutions.(PDF, 20.55 Mb)

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

Balancing Strength with Flexibility
The high-strength polyester film backing on 3M™ Microfinishing Film Sheet 362L serves as a uniform base for extremely fine mineral grains, helping keep a consistent, uniform thickness for high precision work. The film is made with micron-graded aluminum oxide mineral, a popular choice among industrial professionals because of its cut-rate and long life. This mineral is tough and self-fractures to expose fresh cutting edges in use. Due to its high cut-rate, hardness, strength and low heat retention, aluminum oxide mineral is widely used in sanding and finishing.

Available in a sheet form, the film may be cut to match the dimensions of a backup pad or hand pad. This flexibility enables operators to reap the benefits of a microfinishing film and still tackle tough areas that might be inaccessible to other tools and machines.

Customer Reviews
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Large Volume Order

If you are considering a large purchase of this or other 3M Abrasive products our inside sales team is ready to help by providing additional information and options that our industrial customers typically seek when making abrasive procurement decisions. Our technical expertise, customer support, and global capabilities put us in a unique position to address your biggest challenges, and we’ll do our best to prove that we should be your abrasive supplier of choice.

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