ÅngströmLap® Aluminum Oxide Lapping Film Disc - 4 inch 5µm (micron), PSA

ÅngströmLap Aluminum Oxide Lapping Film is recommended when diamond lapping film is not needed, like in many fiber optic multimode applications. Some aluminum oxides can even be used as the final polish. The 0.5um and 0.3um will produce return losses of -50 dB or better, but because they cut the glass at a much quicker rate than the ceramic, undercut may occur. Aluminum oxide 5μm lapping film is typically used as for polishing MM connectors.

The 4" disc is the standard size for the Seikoh Giken SFP-100D, Ultra Tec UT-8808 (old), Minipol-1, Siecor SP500, Domaille FS500 and all Krell Polishing Machines.

Lapping Film Features:

• FO Type Name: AO5-AT
• Film Color: White
• Tape Total Thickness: 91.0 ± 2.0 μm
• Surface Roughness: 2.3 ± 1.0 μm
• Particle Type: Aluminum Oxide film
• Grit Size: 5 micron (5μm)
• Base Film Material: Polyethylene terephthalate
• Base Film Thickness: 3 mil (75 µm)
• Quantity: 100 discs
• Process Parameters Type: AT
• PSA Backed Film
• Product Life: Guaranteed up to 5 years from the manufactured date

Pressure Sensitive Adhesive is only recommended when it is completely necessary. Once the film is stuck to the polish surface it cannot be removed and reused. This creates a potential and likely problem of debris adhering to the film that cannot be removed. Any debris that comes in contact with the fiber may cause a scratch. PSA will increase the cost of the lapping film.