Our 3M PSA Cloth Disc 348D features a heat-resistant resin bond and cloth backing that make this sanding disc a good choice for high heat and heavy duty sanding applications. Aluminum oxide particles in a closed coat offer a fast cut for grinding and dual action (D/A) sanding on metal. This versatile disc provides a fast, efficient method for deburring, blending, cleaning up, and finishing metal parts and surfaces of various sizes and shapes.
PSA or pressure-sensitive adhesive disc is pressed onto a backup pad (also called a disc pad and sold separately) that is attached to a disc sander, random orbital sander, or stationary disc sander.
We chose aluminum oxide abrasive, 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 in use, whereas traditional abrasives such as garnet quickly wear down with use. Due to their fast cut-rate, hardness, strength, and low heat retention, they are 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.
Heat-resistant resin is a sturdy binding agent that adheres the abrasive to the backing and maintains the stability of the bond even in conditions of high heat or pressure.

Dynabrade 78723 2" x 1"-W242 Dynacut A/O Mounted Point, 5/pack
Dynabrade 57400 2-3/4" (70 mm) W x 8" L Dynaline Sander, Non-Vacuum
Dynabrade 56354 2-2/3" x 6-7/8" Non-Vacuum Dynabug II Disc Pad, Vinyl-Face
Dynabrade 91567 6" Dynacut Extreme Orange Premium Film Disc, 180 Grit, Hook & Loop, Vacuum Holes, 50/Box
Dynabrade Nitro Series 50218 Nitro Tool .5hp Die Grinder Kit
Dynabrade 31925 - 3/4" Static Conductive Hose, Black
Dynabrade 13506 Dynastraight Finishing Tool, 1 HP, Rear Exhaust, 3,400 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Dynabrade 60051 .1 hp Straight-Line Quick-Change Pencil Grinder, Rear Exhaust, 60,000 RPM, 1/8" Collet 
