We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Yellow 5 in foam backup pad with threaded shaft, pack of 10

3M

3M 05575 Adhesive PSA Disc Backup Pad 5 in PK10

SKU CH-74MF-M2ABK

A 5 in adhesive-backed foam backup pad for disc sanders, rated to 10,000 RPM and sold in a 10-pack

  • Product typeHand Sanders
  • Tapered foam design improves control on contours
  • Medium-density foam balances flexibility with firm support
  • 10 000 RPM rating suits high-speed sanding tasks
  • Threaded 5/16 in-24 shaft fits compatible hand sanders
  • Pack of 10 pads keeps replacements ready

3M 05575 PSA Disc Backup Pad 5 Inch Pack 10

This 3M adhesive-backed disc backup pad measures five inches in diameter and features a medium-density foam construction. It uses a threaded 5/16-24 shaft for secure attachment to compatible hand sanders. The yellow tapered pad supports a maximum operating speed of 10000 RPM and is sold in a convenient pack of ten units.

Replaces Worn Pads For Consistent Sanding Finish

Swap out a damaged or glazed backup pad when the adhesive surface no longer holds discs flat or when vibration increases during operation. A fresh pad restores even pressure across the abrasive, preventing swirl marks and extending disc life. The upgrade is worth it whenever the current pad shows uneven wear, loss of grip, or foam breakdown that affects surface quality.

Suits Shops Running High Volume Disc Changes

This pack suits professional shops and frequent users who need multiple pads ready for quick changeovers on non-vacuum sanding systems. The threaded shaft fits tools accepting a 5/16-24 connection, while the medium density handles general-purpose sanding tasks. Buyers needing vacuum-hole pads for dust extraction, alternative densities for specialised finishes, or different shaft sizes should look at other configurations.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $238.99
Pricier than about 90% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand name3M
Product typeHand Sanders

Questions about this item

Will the 5/16 in.-24 threaded shaft fit my sander's spindle?

The pad uses a 5/16 in.-24 threaded shaft; match that thread to your tool's spindle before mounting.

How do I attach the adhesive-backed discs without them shifting?

Clean the pad face, peel the disc liner, centre the disc on the 5 in. foam surface, then press firmly from the middle outward.

When should I replace the yellow foam backup pad?

Replace the pad when the foam loses medium density, the tapered edge wears unevenly, or the adhesive no longer holds discs securely.

More in Utility & Specialty Hand Tools

Similar items