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3M Flexible Foam Sanding Sponge, 5-1/2" Length x 4-1/2" Width x 0.18" Thick, Super Fine Grit (Pack of 250)

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Specifications for this item
Brand Name 3M
Part Number 051141278865
Manufacturer Grade 27886
Manufacturer Series Number 27886
Number of Items 250
Overall Length 5-1/2  inches
Overall Width 4-1/2  inches
Thickness 0.18  inches
UNSPSC Code 47131603

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Product Features

  • Highly conformable sanding sponge finishes around curves and over contoured surfaces
  • Durable construction lasts for the life of the abrasive
  • Foam pad and unique textured backing provide comfortable grip and control
  • Resists loading and rinses clean for reuse
  • Array of available grades can accomplish all stages of final-finish sanding

Product Description

From the Manufacturer

The 3M™ Flexible Foam Sanding Sponge is a highly flexible abrasive pad that provides an excellent finish, exceptional conformability, and high resiliency, making it ideal for sanding wood, paint, metal, plastic, and drywall when conformability is needed for a consistent finish. It is ideally suited to numerous applications in woodworking as well as the transportation and aerospace industries. This durable and reusable soft-back foam can be shaped as desired by cutting, bending, folding, or twisting. It folds to fit crevasses and will bend and twist to get into corners and other hard-to-reach areas without wrinkling caused by thicker pads. This combination of flexibility and close conformability provides superior access to contours, profiles, creases, corners, and curves. Common applications are touchup and repair of furniture legs, moldings, and irregular shapes. The sponge also produces a consistent scratch and provides uniform pressure to minimize finger marks and reduce the possibility of sanding through finish coats.

The sponges are approximately 4-1/2 x 5-1/2 inches (width x length) and 3/16" thick. A medium sponge produces a finish comparable to abrasive grades 120-180, and a fine sponge is comparable to grades 320-400. The super fine sponge is comparable to grades 500-600, and the ultra fine sponge corresponds to grades 800-1000.


Highly conformable
Highly conformable sponge produces a consistent finish on contoured wood surfaces view larger
3M™ Sanding Sponge Grade
Finish comparable to coated abrasive grade
Super Fine
Ultra Fine

Recommended Grades for 3M™ Sanding Sponge Applications
Whitewood Smoothing and Finishing
Medium, Fine
Sealer Sanding, General Finish Sanding
Fine, Super Fine, Ultra Fine

Aluminum oxide grain
Premium aluminum oxide grain provides fast action and long lasting durability view larger
Textured backing
3M textured backing minimizes slippage and provides maximum hold with minimum effort view larger

3M™ Sanding Sponge Applications

The 3M Flexible Foam Sanding Sponge provides professional performance in a range of applications in woodworking, transportation, and aerospace. When the goal is to bring out the beauty and structure of whitewood that has contours, curves, or crevices, use this sponge to upgrade or smooth the surface, reduce raised wood fibers, and promote better penetration of the stain into the wood surface. It's also handy for touch-up and repair operations to remove splinters, pencil marks, dried glue residue, or scratches and dents from assembly and handling. When a whitewood sealer is used to protect the wood against moisture, the sanding sponge may be used for scuff sanding prior to paint application.

Re-work and repair operations in transportation and aerospace require scuffing of the clear coat without removing any of the underlying paint. Let the flexible foam sanding sponge be your go-to product for touch-ups and scuffing on contours, edges, and hard to reach areas. Grades of fine or super fine are ideal starting points for scuffing finishes, while medium and fine grades are suitable for whitewood sanding.


Achieving Optimal Finish with 3M™ Flexible Foam Sanding Sponges

Whitewood Smoothing and Finishing:

  • Hand sand imperfections or rough spots from the workpiece with a medium grade sponge before the final finish.
  • To further refine the finish, use the fine grade sponge.

Sealer Sanding and General Finish Sanding:

  • To provide a level surface and good adhesion of the sealer or topcoat, scuff sand the workpiece with a fine or super fine grade sponge.
  • The grade used must be fine enough so that the topcoat will fill in the scratches.
  • Where a finer scratch pattern is needed, use ultra fine.

Flexible and Comfortable with Reliable Performance

The 3M Flexible Foam Sanding Sponge features a unique microreplicated comfort grip texture on the backing for a soft, comfortable, and easier grip than with smooth backed sponges. The textured backing even interlocks with itself when folded to reduce slippage. The flexing action of the sponge helps it release particles to reduce loading, and this sponge can be washed and re-used for the life of the abrasive. It will not split like paper backed coated abrasives sometimes do, and can be used in dry or wet applications. This sponge is not only comfortable—it also boasts a cut-rate that is typically faster than other sponge-backed abrasives, for further improved productivity and reduced operator fatigue.

This sanding sponge contains aluminum oxide abrasive mineral, which is a popular choice among industrial professionals because of its cut-rate and long life. Aluminum oxide mineral is 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 its high cut-rate, hardness, strength, and low heat retention, aluminum oxide mineral is widely used for sanding and finishing applications. Aluminum oxide is suitable on a wide variety of substrates in both woodworking and metalworking, including ferrous alloys.


About 3M Abrasive Systems

For more than a century, 3M has applied innovation and technology to improving our customers’ lives and supporting their business goals. Today the company, from its headquarters in St. Paul, Minnesota, serves industrial and commercial customers and consumers in nearly 200 countries. Abrasive Systems products, including a complete line of coated abrasives, microfinishing and microreplicated abrasives, and hardware accessories, provide the finishing touch for almost any surface modification application. The 3M brand, across thousands of products, represents consistency, superior quality, and value.


Product Details

Safety Information [PDF]| Material Safety Data Sheet [PDF]
  • Shipping Weight: 7.2 pounds
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • Shipping Advisory: This item must be shipped separately from other items in your order. Additional shipping charges will not apply.
  • ASIN: B0098MGOBK
  • Item model number: 051141278865
  • Amazon Best Sellers Rank: #1,241,607 in Industrial & Scientific (See Top 100 in Industrial & Scientific)
  • Product Warranty: For warranty information about this product, please click here

Important Information

Legal Disclaimer
3M packages and labels its industrial/commercial products for purchase and use by industrial, professional, and commercial customers. Unless specifically stated on the product package or applicable product literature, 3M industrial products are not packaged, labeled, or intended for sale to individual consumers (ie., the general public).

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