3BUPFJ58

5" RANDOM ORBITAL BACK UP PAD
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About this product
The 3BUPFJ58 is a 5-inch back-up pad designed to attach to a random orbital sander or polisher. It serves as the mounting surface for 5″ sanding or polishing discs, providing a stable, cushioned platform that lets the disc conform to the workpiece without “digging in.” Made from a resilient foam core bonded to a durable, hook-and-loop face, this pad absorbs vibration, distributes pressure evenly, and prevents damage to delicate aircraft surfaces during sanding, polishing, or compounding tasks.
3BUPFJ58 Datasheet
UOM: EA
Stock Location: Dubai
Hazardous Item: Non-Hazardous Item
Life Limited Part: No
Lead Time: Stock
Certification: TRACE
8130/EASA Eligible: Yes
PRODUCT DESCRIPTION

3BUPFJ58

  • Hook-and-Loop Disc Attachment - The hook-and-loop surface makes it quick and easy to swap 5″ sanding or polishing discs without adhesive, saving time between operations.

  • Medium-Density Foam Core - Balances firmness and flexibility to conform to curved or uneven surfaces, reducing swirl marks and allowing consistent material removal.

  • Rigid Plastic Backing Plate - Molded to keep the foam from distorting, it maintains a flat, even pad face for smooth, controlled sanding or polishing.

  • High-Temperature and Chemical Resistance - The foam and plastic materials resist heat buildup and common polishing compounds or cleaning solvents, extending pad life.


  • Feathering edge transitions, sanding primer before topcoat, and blending repaired areas on fuselage skin.

  • Using polishing pads to restore shine to metal or composite surfaces after paint stripping, or to apply wax/compound.

  • Smoothing fairing compound on fiberglass or carbon-fiber parts without creating flat spots or gouges.

  • Working around rivet lines, access panels, or tight contours where a flexible pad helps maintain consistent contact.


  • How do I attach sanding or polishing discs?

Simply press the hook side of the disc onto the loop face of the pad. To remove, peel off the disc and replace it with a fresh one.

  • Can it handle high-speed operation?

Yes. The molded plastic backing and foam core are rated for speeds up to 12,000 RPM, but do check your tool’s maximum RPM to confirm compatibility.

  • What maintenance does the pad require?

Periodically clean the hook-and-loop face by brushing with a soft wire brush or compressed air to remove built-up dust and debris so discs adhere properly.


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