3M 7000044823 Lapping Film 268X 0.30 Micron Psa Sheet

Product Description

The 3M 7000044823 is a precision lapping film sheet engineered for the fine polishing of fiber optic connectors. It features aluminum oxide mineral coating bonded to a 3 mil polyester film substrate with a pressure-sensitive adhesive (PSA) backing. At 0.30 micron grit size, this sheet delivers ultra-fine material removal suited to the last stages of connector end-face preparation. The sheet measures 8.5 inches x 11 inches and is sold individually. Fiber optic technicians and communications infrastructure professionals use this film where consistent, repeatable surface finish is critical to minimizing insertion loss and back reflection.

This lapping film is intended for polishing fiber optic connector end-faces in both field and bench applications. The PSA backing allows the sheet to be mounted flat to a polishing plate or fixture without slipping, maintaining consistent contact during the polishing stroke. It is well suited to single-mode and multimode connector termination workflows where surface finish requirements are tight and abrasive progression through multiple micron grades is standard practice.

Key Features

• 0.30 micron aluminum oxide mineral for ultra-fine finish polishing
• 3 mil polyester film backing provides dimensional stability during use
• PSA backing secures sheet to polishing plate or fixture without adhesives or clips
• 8.5 inches x 11 inches sheet size fits standard polishing fixtures and pads
• Designed specifically for fiber optic connector end-face polishing applications

Compatibility

Designed for use in fiber optic connector polishing workflows as a fine-grit finishing sheet; intended for use with flat polishing plates or fixtures that accept PSA-backed lapping film sheets.

Installation Notes

This product is applied by a fiber optic technician or communications tech during connector termination or refurbishment. Press the PSA side firmly onto a clean, flat polishing plate or puck before use to eliminate air pockets. Inspect the film surface before each use and replace when mineral loading or surface damage is visible. Follow the connector manufacturer polishing procedure for proper stroke count and load when using this grade in a multi-step abrasive sequence.