Backing Pad 3M 7000068111 178 mm for hook-and-loop abrasive discs

3M Backing Pad 178 mm for hook-and-loop abrasive discs is a support pad designed to create a stable connection between orbital or random orbital sanders and 178 mm velcro sanding discs. The pad evens out pressure across the abrasive surface, helps maintain disc concentricity during use and enables quick disc replacement thanks to the hook-and-loop fastening. It is intended for surface preparation and finishing on metal, wood and painted substrates where a uniform sanding result is required.

Advantages

The backing pad provides consistent contact with the abrasive disc to reduce vibration and improve surface evenness. Its 178 mm diameter offers broad coverage for faster material removal and efficient finishing. The hook-and-loop face ensures secure attachment of sanding discs while allowing fast changeover without tools. Construction compatible with orbital and random orbital sanders keeps disc alignment stable for repeatable results.

Suitable for

• Sanding and finishing of metal surfaces
• Wood sanding, smoothing and shaping
• Paint and primer surface preparation and feathering
• General abrasive blending and deburring tasks

Key specifications

• Diameter: 178 mm
• Attachment type: hook-and-loop (velcro) face
• Compatible tool types: orbital and random orbital sanders that accept 178 mm pads
• Function: support pad for even pressure distribution and disc retention

How to use

Attach the backing pad to a compatible sander according to the tool manufacturer's instructions, ensuring the pad is centered and securely fastened. Press a compatible 178 mm hook-and-loop abrasive disc onto the pad until it engages with the loop surface. Operate the sander at recommended speeds for the abrasive grade and substrate, using steady, overlapping passes to achieve an even finish. Replace worn discs as needed by peeling off the used disc and attaching a new one to the hook-and-loop surface.

Usage recommendations

Use appropriate abrasive grades for the material and job stage: coarser grits for rapid stock removal, medium grits for shaping, and finer grits for finishing. Inspect the backing pad periodically for wear, cracking or loss of hook-and-loop engagement and replace the pad if its integrity is compromised. Follow safety guidelines for dust control and personal protective equipment when sanding metal, wood or painted surfaces.