Aluminum oxide abrasive offers a fast cut, long life, and professional performance on many surfaces
Durable polyester film backing enables close-tolerances and consistent finish
Hookit hook and loop backing allows quick attachment and removal for multi-step finishing processes
Load-resistant coating prevents dust and debris from clogging the disc
Available in both open coat and dust control

3M Hookit Microfinishing Film Disc 366L is rated Best in the 3M Microfinishing line of film backed discs. It features premium, micron-graded aluminum oxide abrasive 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, or metal.

The abrasive is resin-bonded and supports disc flexibility without sacrificing durability and reliable performance under high heat and pressure. 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. And the 3M Hookit attachment and removal system holds the disc securely during use and provides easy disc change out. Designed for use with orbital and random orbital sanders, this disc comes in a range of grades for complete multi-step sanding and finishing.

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.

SPECIFICATIONS

Abrasive Material:	Aluminum Oxide
Application:	Finishing, Sanding
Attachment Type:	Hook & Loop
Backing Material:	Polyester Film
Coat Type:	Open Coat
Equipment - Machines:	Random Orbital Sanders
Industries:	AOEM, Composite, Paint Preparation, Woodworking
Micron Grade:	100 μm
Substrate:	Carbon Steel, Composites, Paint
Packaging:	Sold separately as a single disc

Hookit Microfinishing Film Disc 366L, 100 Mic