3M 7000044822 Aluminum Oxide Lapping Disc 12 Inch Psa

Product Description

The 3M 7000044822 is a 12-inch diameter aluminum oxide lapping disc designed for precision surface finishing applications. The abrasive mineral is coated onto a 3 mil polyester film substrate and bonded with a durable resin system that outperforms softer resin formulations in cut consistency and disc life. A pressure-sensitive adhesive (PSA) backing allows fast, repeatable mounting to compatible backup pads and platens. Available in seven grades ranging from 0.05 to 60.0 micron, this disc serves technicians and process engineers who need tight control over surface finish quality across a range of material removal rates.

This disc is suited for fiber optic connector end-face finishing and roll superfinishing operations where precise, consistent stock removal is required. The tight particle size distribution ensures uniform scratch patterns and predictable finish results across the full disc life. It is used in both production and bench-top finishing setups where a PSA-backed disc format is preferred over pressure-plate or film-frame alternatives. Operators in telecommunications component manufacturing, precision machining, and optical fabrication shops are the primary users of this product.

Key Features

• PSA backing for fast, secure mounting and removal from compatible platens
• Tight particle size distribution for consistent scratch pattern and finish uniformity
• Harder resin system delivers longer disc life and more consistent cut rate compared to softer resin alternatives
• Aluminum oxide mineral on 3 mil polyester film substrate for dimensional stability
• Available in seven micron grades from 0.05 to 60.0 micron to match varied finishing requirements
• Compatible disc format also available in sheets and rolls for alternate fixturing setups

Compatibility

Designed for use in fiber optic finishing and roll superfinishing applications requiring a 12-inch PSA-backed lapping disc on standard platen or backup pad equipment.

Installation Notes

Installation is performed by technicians or process engineers operating lapping or polishing equipment. Before mounting, ensure the platen or backup pad surface is clean and free of debris that could cause uneven disc adhesion or premature delamination. Align the disc concentrically on the platen before pressing to seat the PSA bond fully. Follow equipment manufacturer lockout procedures before changing discs on powered lapping machines.

Technical Specifications

• Diameter: 12 inches
• Mineral: Aluminum Oxide
• Backing Material: 3 mil Polyester Film
• Attachment Type: Pressure-Sensitive Adhesive (PSA)
• Grade Range: 0.05 to 60.0 micron (7 grades available)
• Weight: 0.04 pounds
• UOM: Each
• UPC: 00051111497852

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000044822