3M 7100106139 5 Inch Non-woven Wet or Dry Abrasive Disc

Product Description

The 3M 7100106139 is a 5-inch non-woven abrasive disc designed for wet or dry finishing and polishing of contoured surfaces. Silicon carbide abrasive particles are bonded to a flexible nonwoven backing, delivering consistent cut and finish on softer materials including plastics, aluminum, brass, and copper. Available in 15.0 and 30.0 micron grades, the disc uses precision micron-coated mineral to produce a uniform surface finish. Each disc is color-coded by micron grade for quick identification at the bench or in the field. This is a hand-finishing tool suited for machinists, fabricators, and surface preparation technicians.

This disc is used in finishing and polishing applications where a controlled, fine surface profile is required on non-ferrous metals and plastics. The flexible nonwoven construction conforms to curved and contoured workpiece geometry, making it appropriate for detailed finishing passes on tubing, fittings, formed sheet metal, and plastic components. The wet or dry design allows use with water, cutting fluid, or completely dry depending on the material and desired finish. The 15.0 and 30.0 micron grades position this disc for fine and ultra-fine finishing stages, reducing the number of hand-sanding and buffing steps in the overall process.

Key Features

• Silicon carbide abrasive on a flexible nonwoven backing conforms to contoured surfaces
• Wet or dry use compatible with water, cutting fluid, or dry application
• Precision micron-coated mineral delivers a uniform, consistent finish
• Color-coded micron grading allows fast grade identification
• Reduces finishing steps and shortens hand sanding and buffing time
• Available in 15.0 micron and 30.0 micron grades

Compatibility

Designed for finishing and polishing softer materials including plastics, aluminum, brass, and copper. Suitable for use on contoured and flat surfaces in fabrication, machining, and surface preparation workflows.

Installation Notes

This disc is used by machinists, metal fabricators, and finishing technicians as a hand or machine-assisted abrasive. Secure the workpiece before beginning any sanding or polishing pass. When using wet, ensure the work area and any nearby electrical equipment are protected from moisture. Follow applicable shop safety guidelines for abrasive disc use, including appropriate eye and hand protection.

Technical Specifications

• Disc Diameter: 5 inches
• Abrasive Material: Silicon Carbide
• Backing Type: Non-Woven
• Micron Grades Available: 15.0 micron, 30.0 micron
• Use Type: Wet or Dry
• Package Dimensions: 7.7 x 6.9 x 4.7 inches
• Weight: 0.01 pounds
• UPC: 00051111501894

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100106139