3M 7100383529 Abrasive Disc 6 in Ceramic 500 Grit 50 Pack

Product Description

The 3M 7100383529 is a Cubitron II finishing disc engineered for cool-cutting, low-loading performance across a wide range of surface preparation tasks. Built on a C-weight film backing, the disc features an open-coat ceramic abrasive at 500 grit. The open-coat construction reduces loading and heat buildup, which extends disc life and helps produce a consistent finish. At 6 inches in diameter with a multi-hole pattern, it is sized for standard dual-action and random orbital sanders used in finishing and blending work. This disc is suited for professional use in automotive refinishing, composites fabrication, and general surface prep.

This disc is designed for finishing work on painted surfaces, plastics, composites, gelcoat, fiberglass, and carbon steel. The 500-grit ceramic abrasive delivers fine material removal with minimal surface damage, making it appropriate for final-stage prep before coating or finishing. It is commonly used in body shops, marine fabrication environments, and light industrial settings where surface quality is critical. Sold in a pack of 50, it supports consistent production use without frequent restocking interruptions.

Key Features

• 500-grit open-coat ceramic abrasive for fine finishing and reduced loading
• C-weight film backing provides flexibility and durability on contoured surfaces
• 6-inch diameter with multi-hole pattern for dust extraction compatibility
• Cool-cutting construction minimizes heat buildup and workpiece damage
• Compatible with paint, plastic, composites, gelcoat, fiberglass, and carbon steel
• Sold in a 50-pack for production-level use

Compatibility

Designed for use on paint, plastic, composites, gelcoat, fiberglass, and carbon steel substrates. Compatible with standard 6-inch dual-action and random orbital sanders equipped with multi-hole hook-and-loop pad attachments.

Installation Notes

This disc is installed by a technician or skilled tradesperson onto a hook-and-loop sanding pad. Confirm the sander pad diameter and hole pattern match the disc before use. Inspect the disc for damage before mounting and do not use discs that are torn or delaminated. Operate the sander within the speed rating appropriate for the disc size to avoid disc failure or loss of control.

Technical Specifications

• Disc Diameter: 6 inches
• Hole Pattern: Multi-Hole
• Abrasive Type: Ceramic
• Grit: 500
• Backing Weight: C Weight
• Backing Material: Film
• Series: 775L
• Quantity per Pack: 50

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100383529