3M 7100053828 Microfinishing Film Belt 120x3/8 Inch Diamond

Product Description

The 3M 7100053828 is a diamond microfinishing film belt designed for precision finishing on hard, difficult-to-abrade materials. Built on a durable polyester film backing with micron-graded diamond mineral, the 675L belt produces tight-tolerance, fine surface finishes on thermal spray coatings, ceramics, carbides, chilled iron, and granite. At 120 inches long and 3/8 inch wide, the belt is sized for contour and complex-shape finishing applications where conventional abrasives fall short. It can be run dry or wet with water or oil-based lubricants, making it adaptable to a range of finishing setups.

This belt is suited to industrial grinding, tool and die work, thermal spray reconditioning, and precision surface finishing where consistent micro-level stock removal is required. It performs well on contoured workpieces and complex geometries that are common in aerospace, tooling, and hard-coating refurbishment applications. The color-coded orange designation helps technicians quickly identify the abrasive grade and avoid mix-ups when working with multiple grades on the same line or job.

Key Features

• Micron-graded diamond mineral for close-tolerance precision surface finishes
• Polyester film backing supports dry or wet use with water or oil-based lubricants
• Well suited for medium stock removal on extremely hard materials
• Handles contour and complex-shape finishing, including thermal spray coated surfaces
• Orange color coding reduces abrasive grade mix-up risk in multi-grade workflows

Compatibility

Designed as an OEM-style replacement and standard-fit abrasive belt for precision microfinishing machines and belt-finishing systems that accept 120 inch by 3/8 inch belts.

Installation Notes

Installation and tensioning should be performed by a qualified grinding or finishing machine operator following the equipment manufacturer's guidelines. Power down and de-energize the machine completely before mounting or removing the belt. Ensure belt tracking and tension are set within the machine's specified range before operation. When using wet, confirm that the lubricant selected is compatible with the machine's seals and drainage system.

Technical Specifications

• Series: 675L
• Belt Length: 120 inches
• Belt Width: 3/8 inch
• Abrasive Mineral: Diamond
• Backing Material: Polyester Film
• Color: Orange
• Use Type: Dry or Wet (water or oil-based lubricants)
• Unit of Measure: Each
• Minimum Order Quantity: 100
• Weight: 3.36 pounds
• UPC: 051125869336

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100053828