3M 7100044016 Diamond Lapping Film Psa Sheet 30.0 Micron

Product Description

The 3M 7100044016 is a pressure-sensitive adhesive (PSA) diamond lapping film sheet designed for precision surface finishing of extremely hard materials. Built on a dimensionally stable polyester film base, it features precisely graded diamond abrasive particles that deliver a consistent, repeatable finish across each use. This sheet is rated at 30.0 micron particle size, making it suitable for intermediate to fine lapping applications. Each sheet measures 9 inches x 11 inches. Machinists, optical technicians, toolmakers, and precision finishing trades use this film when tight surface finish tolerances are required on hard substrates such as ceramics, carbide, and hardened steel.

This lapping film is used in precision grinding, polishing, and finishing operations where conventional abrasives cannot achieve the required surface quality. The PSA backing allows the sheet to be mounted directly to a flat lapping plate, backing block, or fixture without additional adhesives or clamps. It is well suited to both bench and machine applications in toolrooms, optical labs, and precision manufacturing environments. The 30.0 micron grade positions it as a stock-removal or pre-polish step in a multi-stage lapping sequence.

Key Features

• Precisely graded 30.0 micron diamond abrasive particles for consistent material removal
• PSA backing mounts directly to lapping plates or backing blocks without separate adhesives
• Polyester film substrate provides dimensional stability and resistance to tearing during use
• Delivers repeatable finish results on extremely hard materials including ceramics and carbide
• Sheet format allows easy cutting or trimming to fit specific fixtures or tooling

Compatibility

Designed as an OEM-style PSA lapping sheet for use with standard flat lapping plates and backing fixtures that accept 9 inches x 11 inches abrasive sheets.

Installation Notes

Clean and degrease the lapping plate or backing surface thoroughly before applying the PSA sheet to ensure full adhesion and prevent slippage during use. Peel and apply the sheet carefully, pressing from the center outward to eliminate air bubbles. Inspect the abrasive surface periodically during use and replace the sheet when visible glazing or uneven cutting occurs. Always wear appropriate eye and hand protection when handling diamond abrasive films.

Technical Specifications

• Particle Size: 30.0 micron
• Sheet Size: 9 inches x 11 inches
• Abrasive Type: Diamond
• Backing: Polyester film with PSA
• Weight: 0.02 pounds
• Unit of Measure: Each
• Minimum Order Quantity: 10
• UPC: 00051111560334

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7100044016