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 52221 .5 hp 7 Degree Offset Die Grinder, Rear Exhaust, Short Shank, 18,000 RPM, 1/4" Collet
Dynabrade 92583 3-1/2" Dia. x 60 Micron A/O Non-Vacuum Hook-Face Scalloped-Edge DynaCut Disc, 50/Box
Dynabrade 18426 Vane Set (4pk)
Dynabrade 11005 Dynafile Belt Housing Guard
Dynabrade Nitro Series NF1 Nitrofile Abrasive Belt Tool
Dynabrade 91116 1/4" W x 18" L 120 Grit A/O DynaCut Belt, 50/pack
Dynabrade 45263 Safety Throttle Lever
Dynabrade 54990 Inlet Bushing- 1/2" NPT
Dynabrade 82462 5" Dia. x 400 Grit A/O PSA Filmbac DynaCut Disc, 100/Box
Dynabrade 01464 Seal
Dynabrade 55523 .3 hp Straight-Line, 6" Extended Die Grinder, Aluminum Housing 25,000 RPM, Rear Exhaust, 1/4" Collet
Dynabrade 57371 Shroud
3M 09292, Rubber Sanding Block, 7000126886
Dynabrade 13204 Dynastraight Finishing Tool, .7 HP, Rear Exhaust, 3,400 RPM, 5/8"-11 Arbor
Dynabrade 51302 .5 hp Straight-Line Die Grinder, Front Exhaust, 20,000 RPM, 1/4" Collet
Dynabrade 40534 Brush
Dynabrade 59004 3-1/2" Dia. Central Vacuum Dynorbital-Spirit Random Orbital Sander, 3/8" Orbit
Dynabrade 52931 1/4" Drill, .4 HP, Rear Exhaust, 500 RPM
Dynabrade 94876 25' Max Flow 5/16" I.D. Air Hose Assembly, Male (1/4") / Male (1/4") Fitting Ends Included
Dynabrade 79026 1/4" W x 18" L 40 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 01797 Exhaust Cover
Dynabrade 51756 .1 hp Straight-Line Extension Pencil Grinder, Rear Exhaust, 35,000 RPM, 1/8" Collet
Dynabrade 53812 .7 hp Straight-Line Die Grinder, Steel Housing, Rear Exhaust, 20,000 RPM, 1/4" Collet
Dynabrade 56472 Gear Plate
Dynabrade 15034 Contact Arm Assembly, 13" Mini-Dynafile II Offset
Dynabrade 64671 Replacement Class II Pleated Panel Filter Cartridge
Dynabrade 79702 - 5-1/2" Dynacut White Foam Flat Face Polishing Pad, Hook and Loop
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
Dynabrade 51078 Bearing
Dynabrade 56759 .7 hp Straight-Line Die Grinder, Central Vacuum, 15,000 RPM, 1/4" Collet
3M 81356, Venture Tape White Aluminum Foil Tape 1558HT, 72 mm a 45.7 m, 5.4 mil, 7010335933 
