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 93534 3" Mandrel for Sanding Stars, 3-48 Male Thread
Dynabrade 59339 Vacuum Cuff, 1", w/Groove
Dynabrade 56826 6" Dia. Non-Vacuum Dynorbital Supreme Random Orbital Sander, 3/16" Orbit
Dynabrade 01794 Rubber Drive Wheel
Dynabrade 90407 1/8" W x 24" L 80 Grit A/O DynaCut Belt, 50/pack
Dynabrade 90499 1/2" W x 34" L 120 Grit A/O DynaCut Belt, 50/pack
Dynabrade 79061 1/2" W x 24" L 60 Grit A/Z DynaCut Belt, 50/pack
Dynabrade 82495 6" Dia. x 400 Grit A/O Vacuum PSA Filmbac DynaCut Disc, 100/Pack
Dynabrade 50010 Collet, 3/8"-24 Female Thread, 1/4" Capacity, 3-Piece Collet
Dynabrade 01480 Vane Set (4pk)
Dynabrade 90292 1/2" W x 18" L Medium NWN DynaBrite Premium Belts, 10/pack
Dynabrade 90268 3" W x 10-11/16" L 180 Grit A/O DynaCut Belt, 10/pack
Dynabrade 95216 Pin
Dynabrade 95821 Dynabrade Air Lube 10W/NR, 4oz Bottle
Dynabrade 11684 Dynabelter Contact Arm Assembly 4" DIA X 5/8" W., 40 Duro Serrated
Dynabrade 95842 Dynabrade Air Lube 10W/NR, 1 Pint
Dynabrade 98580 Motor Tune-Up Kit for National Detroit Sander Models
Dynabrade 52474 Vane Set (4pk)
Dynabrade 13509 Dynastraight Finishing Tool, Rear Exhaust, 6,000 RPM, 5/8" (16 mm) or 1" (25 mm) Dia. Arbor
Dynabrade 94112 7" Dynacut Diamond Segmented Rim Cut-Off Blade
Dynabrade 18570 Vane Set (4pk)
Dynabrade 07107 Vane Set (5pk)
Dynabrade 31949 Vacuum Hose Ass'y, 3/4" Vac, 5/16" Air Hose
Dynabrade 18426 Vane Set (4pk)
Dynabrade 78049 1/2" W x 24" L Coarse NWN DynaBrite Belt, 10/pack
Dynabrade 90211 1/8" W x 18" L 60 Grit A/O DynaCut Belt, 50/pack
Dynabrade 92153 1/2" W x 12" L 80 Grit Ceramic DynaCut Scalloped Edge Belt, 50/pack
Dynabrade 50296 5" Dia. Disc Backup Pad, Hard Density, 5/8"-11 Thread
Insize 7360-1M, ZEROING FOOT SWITCH, for digital indicators with micro USB interface, 6940561952483 
