3M™ Microfinishing PSA Film Roll 366L

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Precision, micron-graded aluminum oxide abrasive offers a fast cut, long life, and uniform finish on many substrates

Durable polyester film backing provides flexibility for consistent finishing on contoured surfaces

Pressure sensitive adhesive backing allows quick attachment and clean removal for multi-step finishing processes

Frequently viewed resources

Safety Data Sheet (PDF)

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Highlights

Precision, micron-graded aluminum oxide abrasive offers a fast cut, long life, and uniform finish on many substrates
Durable polyester film backing provides flexibility for consistent finishing on contoured surfaces
Pressure sensitive adhesive backing allows quick attachment and clean removal for multi-step finishing processes
Load-resistant coating prevents dust and debris from clogging the disc
Roll form means abrasive may be cut and shaped per project requirements

3M™ Microfinishing PSA Film Roll 366L features premium, micron-graded aluminum oxide mineral, which is bonded to a durable polyester film backing to produce a fast cut-rate and uniform finish on wood, solid surface composites, plastic, fiberglass, paint prep, coating and corrosion removal, primer, e-coat and metal.

Designed with High-Production Environments in Mind
Made with a load-resistant coating, 3M™ Microfinishing PSA Film Roll 366L is designed to combat the dust and debris that substrates like wood tend to produce. Our coating helps the disc avoid loading prematurely, so it can keep cutting fast and sharp. The abrasive is resin-bonded and supports flexibility without sacrificing durability and reliable performance under heat and pressure. Its polyester film backing flexes to help achieve a consistent finish over contours and offers greater tear-resistance than comparable paper products, making it a good match for high-production environments.

Aluminum Oxide for Fast Cut and Fine Finish
Our 3M™ Microfinishing PSA Film Roll 366L features precision, micron-graded aluminum oxide, which is a popular choice among industrial professionals because of its fast cut-rate and long life. Due to its fast cut-rate, hardness and strength, it is widely used in sanding and finishing applications. Aluminum oxide is suitable for a wide variety of materials in both woodworking and metalworking, and composites.

Mineral Performance Comparison

Easy Tool Attachment
Film Roll 366L comes ready to use with a pressure sensitive adhesive (PSA) coating that conveniently attaches the abrasive to a backup pad or hand pad. Then, the abrasive removes cleanly from the tool when a new abrasive is required.

Keep It Rolling
From transportation and heavy equipment to general industrial, paint preparation, woodworking and composite materials — this versatile abrasive tackles imperfections across industries. Its load-resistant coating helps enhance its effectiveness and longevity.

Learn more about 3M Abrasive Products for:

Woodworking (PDF, 20.55 Mb)
Metalworking (PDF, 73.23 Mb)

Typical properties

Details

Abrasive Material	Aluminum Oxide
Application	Finishing, Sanding
Attachment Type	PSA
Backing Material	Polyester Film, Film
Backing Thickness (Imperial)	3 mil
Bond Type	Resin
Brands	3M™
Core Size (Imperial)	3 in
Core Size (Metric)	76.2 mm
Equipment - Machines	Random Orbital Sanders
Industries	General Industrial, Transportation & Heavy Equipment, AOEM, Paint Preparation, Woodworking, Composite
Micron Grade	15 μm, 20 μm, 30 μm, 50 μm, 60 μm, 80 μm, 100 μm, 120 μm, 150 μm, 180 μm, 220 μm
Product Color	Maroon
Product Form	Roll
Roll Wind	ASO
Sub Applications	AOEM Finish Prep/Repair, Orbital Sanding, Intermediate Sanding, Defect Repair/Leveling, Prepping Metal Prior to Paint, Finishing
Sub Industries	Cabinetry, Furniture, Primary Wood and Panel Processing, Custom Woodworking and Millwork

Dimensions and Classifications

Overall Length (Imperial)	150 ft
Overall Length (Metric)	45.75 m
Overall Width (Imperial)	4.5 in
Overall Width (Metric)	114.3 mm

Resources

3M™ Microfinishing Film, 366L Type D

Safety Data Sheets

Document Number: MSDS_1186907_US_EN

(PDF)

Reviews

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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.