Lapping Film Discs

Lapping Film Discs - Complete Precision Abrasive Film Collection for Flat Lap Machines

Our Lapping Film Discs collection brings together all five precision abrasive film types in a single 6" format - covering the complete lapping and polishing sequence from aggressive coarse grinding through to mirror-quality final polish. Each abrasive type is optimized for specific stages and materials, allowing you to build a complete multi-stage lapping workflow with a single disc size across all stages.

Shop Lapping Film Discs - From $15.00

Available Abrasive Types and Pricing

Abrasive Stage Best For Price
Silicon Carbide (SiC) Coarse lapping Aggressive stock removal on hard materials See product
Aluminium Oxide (Al2O3) Medium-fine lapping Surface smoothing on glass, metal, gemstones See product
Silicon Dioxide (SiO2) Ultra-fine lapping Final surface prep before optical polish See product
Cerium Oxide (CeO2) Final polish Mirror polish on glass and soft stone See product
Diamond All stages Hardest materials, longest life $15.00

Recommended Lapping Sequence

Stage Film Type Purpose
1. Coarse Silicon Carbide Aggressive stock removal
2. Medium Aluminium Oxide or Diamond Surface smoothing
3. Ultra-fine Silicon Dioxide Final surface preparation
4. Final Polish Cerium Oxide Mirror-quality polish on glass and soft stone

Compatible Applications

  • Gemstone flat lap polishing - complete multi-stage sequence from coarse to mirror finish
  • Optical glass polishing - fiber optic connector end face preparation and final polish
  • Glass scratch removal - progressive grit sequence for scratch-free surface restoration
  • Knife and blade sharpening - precision edge polishing on tool steel and carbide
  • Ceramic and technical material lapping - consistent abrasive film for precision surface work
  • Flat lap machine use - 6" discs for all standard flat lap machine platens

Individual Collections

Related Tools

Frequently Asked Questions

  • Q: What is the best lapping film disc for polishing gemstones on a flat lap machine?
    A: Use a 4-stage sequence: silicon carbide for initial surface preparation, aluminium oxide for intermediate smoothing, silicon dioxide for ultra-fine pre-polish, then cerium oxide for the final mirror polish on soft stones. For hard lapidary stones like agate and jasper (Mohs 7+), substitute diamond lapping film at the intermediate and fine stages.
  • Q: Can lapping film discs be used for knife sharpening?
    A: Yes - silicon carbide lapping film removes metal quickly for initial edge shaping, aluminium oxide refines the edge, and diamond lapping film is preferred for hard tool steels and carbide blades. Finish with ultra-fine aluminium oxide or silicon dioxide for a mirror-polished edge.
  • Q: Are lapping film discs reusable?
    A: Yes - rinse with clean water after each use to remove debris. Diamond lapping film lasts longest. Replace any disc when cutting action noticeably slows or the surface appears glazed.