Final Polishing Film

Final Polishing Film is a polyester-film-backed final-stage optical fiber polishing consumable with nanoscale silicon dioxide (SiO₂) abrasive particles and binder uniformly coated on its surface. GRISH manufacturer lists the final film mineral as SiO₂, particle-size range 8–150 nm (0.008–0.15 µm) and appearance fully transparent or semitransparent. It is intended for final polishing of optical fiber connector end faces, with or without backing according to the supplier overview. GRISH standard round options: Ø70 mm, Ø110 mm, Ø127 mm, Ø203 mm. Standard rectangular options: 114 × 114 mm, 152 × 152 mm, 228 × 280 mm. The source does not map specific nanoparticle grades, transparency, backing or dimensions into distinct saleable SKUs. Supplier mentions 1–30 µm lapping films in its wider offering and illustrates D30, D9 and D1 diamond-film process steps; these are not certified grades or models of this SiO₂ Final Polishing Film. Supplier claims of high polishing yield, repeated use and end-face quality are not HANS-certified performance guarantees.