3M 7000118248 Lapping Film 5.0 Micron 8.5x11 Sheet

Product Description

The 3M 7000118248 is a silicon carbide lapping film sheet designed for precision polishing and surface finishing in demanding technical applications. The abrasive mineral is coated onto a 3 mil polyester film backing, providing a stable, uniform cutting surface. At 5.0 micron grading, this sheet delivers fine-level material removal and surface refinement suited to tight-tolerance work. Each sheet measures 8.5 inches by 11 inches. Fiber optic termination technicians and metallurgical lab professionals are the primary users, though the format also suits other precision finishing tasks requiring consistent abrasive performance on a flexible film substrate.

This lapping film is used in fiber optic polishing applications, where consistent micron-level surface quality is critical for connector end-face preparation. It also sees regular use in metallurgical sample preparation, where controlled abrasion produces flat, scratch-free surfaces for microscopy and analysis. The 5.0 micron grade fits mid-to-fine finishing stages in multi-step polishing sequences. The polyester film backing allows the sheet to lay flat on polishing fixtures or glass plates without distortion under moderate pressure.

Key Features

• Silicon carbide abrasive mineral for consistent, controlled cutting action
• 3 mil polyester film backing for dimensional stability and flatness
• 5.0 micron grading for fine surface finishing and polishing
• Sheet format at 8.5 inches x 11 inches suits flat-lap and hand polishing setups
• Suited for fiber optic connector polishing and metallurgical sample prep

Compatibility

Designed for use in silicon carbide-related polishing applications in the fiber optic and metallurgical industries. Confirm fixture and polishing puck dimensions are compatible with the 8.5 inch by 11 inch sheet size before ordering.

Installation Notes

This product is typically handled by fiber optic technicians or lab technicians performing surface preparation work. No power tools or utility shutoffs are required for standard lapping film use. Secure the sheet flat against a polishing plate or fixture before beginning to prevent movement during abrasion. Follow facility safety protocols for handling fine abrasive materials, including appropriate eye protection.

Technical Specifications

• Abrasive Mineral: Silicon carbide
• Backing Material: 3 mil polyester film
• Micron Grade: 5.0 micron
• Sheet Size: 8.5 inches x 11 inches
• Weight: 0.02 pounds
• Unit of Measure: Each

Standard Information

• Brand: 3M
• Manufacturer Part Number: 7000118248