3M 7100029972 Diamond Lapping Film 15.0 Micron Roll

Product Description

The 3M 7100029972 is a diamond lapping film supplied in roll form, designed for precision surface finishing on extremely hard materials. Precisely graded diamond abrasive particles are coated onto a dimensionally stable polyester film backing, delivering a consistent and repeatable finish from one use to the next. At 15.0 microns, this grade is suited for intermediate stock removal and surface refinement on materials such as ceramics, carbide, hardened steel, optical components, and fiber optic ferrules. The roll format measures 1 inch wide by 50 feet long on a 3-inch core, making it adaptable to automated lapping equipment and manual fixtures alike.

This lapping film is used in applications where tight surface finish tolerances are required. Typical environments include precision tool and die shops, optical fabrication, fiber optic termination and polishing, electronics manufacturing, and hard-materials finishing operations. The 15.0 micron grade fits into a broader lapping sequence, generally used after coarser stock removal and before finer finishing grades. Technicians and machinists working with lapping fixtures, rotary tools, or flat-bed lapping machines will find the roll format practical for cutting custom lengths to suit the application.

Key Features

• 15.0 micron diamond abrasive grade for intermediate precision lapping and surface refinement
• Precisely graded diamond particles provide consistent, repeatable surface finishes
• Polyester film backing offers dimensional stability during lapping operations
• Roll format (1 inch x 50 feet) allows custom length cutting for varied fixture types
• Compatible with wet or dry lapping processes on ceramics, carbide, hardened steel, and optical substrates
• Part of a broader grade range spanning 0.10 to 30.0 micron for full lapping sequences

Compatibility

Designed for use on extremely hard materials including ceramics, carbide, hardened steel, and optical components. Intended for integration into lapping sequences where a 15.0 micron intermediate cut is required. No specific equipment or system compatibility data was provided for this SKU.

Installation Notes

Installation and use of lapping film is typically performed by machinists, optical technicians, or precision finishing specialists. Ensure lapping fixtures and backing plates are clean and free of debris before mounting film to avoid surface contamination or uneven abrasion. Film should be secured flat against the lapping surface with no wrinkles or overlaps. Follow the equipment manufacturer guidelines and applicable shop safety protocols when operating rotary or flat-bed lapping machinery.

Technical Specifications

• Abrasive Grade: 15.0 micron
• Abrasive Type: Diamond
• Backing Material: Polyester film
• Roll Width: 1 inch
• Roll Length: 50 feet
• Core Size: 3 inches
• Unit of Measure: Roll
• Weight: 1 pound
• UPC: 00051111698150

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100029972