Makes Difficult Sanding Easy
When you need to sand a location that is challenging to reach, or need to uniformly sand a unique profile, choose a 3M™ Softback Sanding Sponge for its ability to conform to most any shape or reach difficult spots. The soft foam backing is more flexible than conventional paper backed sandpaper. To access tight locations, the foam backing has been made relatively thin as compared to many other sanding sponges. Use these sponges for hand-sanding applications where you need more precision and detail than could be achieved with machine-sanding methods.
Sanding Sponges for Many Applications
Our 3M Softback Sanding Sponges are highly versatile abrasive products. The sponges have an aluminum oxide mineral coating on a foam pad with a waterproof bonding system, which allows you to use these sponges for both wet and dry sanding, Use these sponges for sanding wood, metal, fiberglass, plastic, gel coats and marine paints. These sponges are especially useful to help eliminate finger marks.
A Variety of Abrasive Grades
These sponges are available in a range of grades, including microfine (grade 1200 to 1500), ultrafine (grade 800 to 1000), superfine (grade 500 to 600), fine (320 to 400) and medium (grade 120 to 180). Each grade uses a range of mineral sizes.
The Reason Why We Chose Aluminum Oxide
Aluminum oxide minerals are a good match for automotive technicians who desire all-purpose versatility and economy. The mineral cuts fast while grinding, blending and deburring. Aluminum oxide is a premium grain with higher fracture strength, meaning the mineral will fragment and renew more readily. Fragmenting continually exposes new, sharp cutting edges as the mineral wears, which maintains the cutting effectiveness and extends the life of the abrasive.
Putting Science to Work for Practical Applications
3M incorporates the science behind abrasives and materials to work for the daily needs of auto body technicians. We’ve combined self-fracturing aluminum oxide abrasives with a waterproof adhesive to a highly flexible backing to serve the real-world needs of sanding uniquely shaped contours and limited-access locations.

Dynabrade 11078 Contact Wheel Ass'y, 5/8" Dia. x 3/8" W x 3/8" I.D., Crown Face, 70 Duro Rubber
Dynabrade 57113 Rotor/Vane Set
Dynabrade 43498 Shaft, Extension Die Grinder, 6"
Dynabrade 90874 2" Dia. Very Fine NWN DynaBrite Locking-Type Disc, 25/pack
Dynabrade 55242 Vane Set (4pk)
Dynabrade 93534 3" Mandrel for Sanding Stars, 3-48 Male Thread
Dynabrade 91563 6" Dynacut Extreme Orange Premium Film Disc, 80 Grit, Hook & Loop, Vacuum Holes, 50/Box
Dynabrade 54769 3" (76 mm) Dia. Extended Right Angle Type 27 Depressed Center Wheel Grinder, .7 HP, 18,000 RPM, 3/8"-24 Spindle
Dynabrade 11399 Type 27 Wheel Mounting Adapter Kit
Dynabrade 90226 1/4" W x 18" L 320 Grit A/O DynaCut Belt, 50/pack
Dynabrade 07109 Vane Set (5pk)
Dynabrade 64490 33" (84 cm) W x 60" (152 cm) L Downdraft Sanding Table, 220 V (AC)
Dynabrade 82489 6" Dia. x 100 Grit A/O Vacuum PSA Filmbac DynaCut Disc, 100/Pack
Dynabrade 91706 DynaMesh 3" 240 Grit Hook & Loop Discs, 50 per box
Dynabrade 78055 1" W x 24" L Medium NWN DynaBrite Belt, 10/pack
Dynabrade 56863B - 6" Dia. Central Vacuum Dynorbital Supreme Random Orbital Sander
Dynabrade 40758 Spanner Wrench
Dynabrade 18570 Vane Set (4pk)
Dynabrade 95216 Pin
Dynabrade 58358 Cylinder
Dynabrade 98580 Motor Tune-Up Kit for National Detroit Sander Models
Dynabrade 01794 Rubber Drive Wheel
Dynabrade 10690 Filter/Regulator/Lubricator, FRL40, 1/2" NPTAssy.
Dynabrade 15336 Rubber Drive Wheel
3M 26204, PPS Series 2.0 Lid, Midi/Mini/Micro, 200 Micron Filter, 7100135646 
