3M Microfinishing Film

3M Microfinishing Film

3M PSA adhesive backed Microfinishing Film is essentially a heavier duty version of imperial lapping film with a slightly thicker film backing and a harder compound of bonding resin. Microfinishing film is made with two types of mineral abrasive: Aluminium Oxide or Silicon Carbide.

Silicon carbide particles are longer, thinner, harder and more brittle than aluminium oxide, so they remove material very aggressively at first and then the finish becomes finer as the abrasive 'beds in'. Aluminium oxide is more like rocks than shards and delivers consistent sustained performance over time. My personal preference is AO for sharpening blades and SiC for precision lapping wood.

The high-strength polyester film backing is coated with premium, micron-graded mineral particles that are electrostatically oriented for greater cutting efficiency. The particles are bonded into a layer of resin that wears away slowly for increased durability.

PSA is the acronym for Pressure Sensitive Adhesive and is a heavy duty version of the adhesive on the back of a Post-It note, it is incredibly sticky stuff but relatively easy to remove with a few drops of orange oil.

Grid  List 
  1. 3M™ Micro Finishing Film 15 Micron SiC (PSA)

    £3.82
    3M PSA adhesive backed Microfinishing Film is essentially a heavier duty version of imperial lapping film with a slightly thicker film backing and a harder compound of bonding resin. Silicon carbide particles are longer, thinner, harder and more brittle than aluminium oxide, so they remove material very rapidly at first and then the finish becomes slightly finer as the abrasive 'beds in'. A high-strength polyester film backing is coated...
  2. 3M™ Micro Finishing Film 30 Micron SiC (PSA)

    £3.82
    3M PSA adhesive backed Microfinishing Film is essentially a heavier duty version of imperial lapping film with a slightly thicker film backing and a harder compound of bonding resin. Silicon carbide particles are longer, thinner, harder and more brittle than aluminium oxide, so they remove material very rapidly at first and then the finish becomes slightly finer as the abrasive 'beds in'. A high-strength polyester film backing is coated...
  3. 3M™ Micro Finishing Film 40 Micron SiC (PSA)

    £3.82
    3M PSA adhesive backed Microfinishing Film is essentially a heavier duty version of imperial lapping film with a slightly thicker film backing and a harder compound of bonding resin. Silicon carbide particles are longer, thinner, harder and more brittle than aluminium oxide, so they remove material very rapidly at first and then the finish becomes slightly finer as the abrasive 'beds in'. A high-strength polyester film backing is coated...
  4. 3M™ Micro Finishing Film 9 Micron AO (PSA)

    £3.82
    3M PSA adhesive backed Microfinishing Film is essentially a heavier duty version of imperial lapping film with a slightly thicker film backing and a harder compound of bonding resin. Aluminium oxide particles are more durable than silicon carbide particles, they don't fracture as easily and last longer. A high-strength polyester film backing is coated with premium, micron-graded mineral particles that are electrostatically oriented for ...
  5. 3M™ Micro Finishing Film 15 Micron AO (PSA)

    £3.82
    3M PSA adhesive backed Microfinishing Film is essentially a heavier duty version of imperial lapping film with a slightly thicker film backing and a harder compound of bonding resin. Aluminium oxide particles are more pebble-like than silicon carbide particles so they don't fracture as easily and last longer. A high-strength polyester film backing is coated with premium, micron-graded mineral particles that are electrostatically oriente...
  6. 3M™ Micro Finishing Film 30 Micron AO (PSA)

    £3.82
    3M PSA adhesive backed Microfinishing Film is essentially a heavier duty version of imperial lapping film with a slightly thicker film backing and a harder compound of bonding resin. Aluminium oxide particles are more pebble-like than silicon carbide particles so they don't fracture as easily and last longer. A high-strength polyester film backing is coated with premium, micron-graded mineral particles that are electrostatically oriente...
  7. 3M™ Micro Finishing Film 40 Micron AO (PSA)

    £3.82
    3M PSA adhesive backed Microfinishing Film is essentially a heavier duty version of imperial lapping film with a slightly thicker film backing and a harder compound of bonding resin. Aluminium oxide particles are more pebble-like than silicon carbide particles so they don't fracture as easily and last longer. A high-strength polyester film backing is coated with premium, micron-graded mineral particles that are electrostatically oriente...
  8. 3M™ Micro Finishing Film 50 Micron AO (PSA)

    £3.82
    3M PSA adhesive backed Microfinishing Film is essentially a heavier duty version of imperial lapping film with a slightly thicker film backing and a harder compound of bonding resin. Aluminium oxide particles are more pebble-like than silicon carbide particles so they don't fracture as easily and last longer. A high-strength polyester film backing is coated with premium, micron-graded mineral particles that are electrostatically oriente...
  9. 3M™ Micro Finishing Film 60 Micron AO (PSA)

    £3.82
    3M PSA adhesive backed Microfinishing Film is essentially a heavier duty version of imperial lapping film with a slightly thicker film backing and a harder compound of bonding resin. Aluminium oxide particles are more pebble-like than silicon carbide particles so they don't fracture as easily and last longer. A high-strength polyester film backing is coated with premium, micron-graded mineral particles that are electrostatically oriente...
  10. 3M™ Micro Finishing Film 80 Micron AO (PSA)

    £3.82
    3M PSA adhesive backed Microfinishing Film is essentially a heavier duty version of imperial lapping film with a slightly thicker film backing and a harder compound of bonding resin. Aluminium oxide particles are more pebble-like than silicon carbide particles so they don't fracture as easily and last longer. A high-strength polyester film backing is coated with premium, micron-graded mineral particles that are electrostatically oriente...
  11. 3M™ Micro Finishing Film 100 Micron AO (PSA)

    £3.82
    3M PSA adhesive backed Microfinishing Film is essentially a heavier duty version of imperial lapping film with a slightly thicker film backing and a harder compound of bonding resin. Aluminium oxide particles are more pebble-like than silicon carbide particles so they don't fracture as easily and last longer. A high-strength polyester film backing is coated with premium, micron-graded mineral particles that are electrostatically oriente...
  12. 3M™ Sharpening Film Refill Pack (Magnum)

    £41.10

    Workshop Heaven 3M Film Top Up Pack (Magnum)

    Contains:
    2 sheets each of 40 micron, 30 micron, 15 micron and 9 micron, pressure sensitive adhesive backed, aluminium oxide microfinishing film. A heavier duty version of standard lapping film with a thicker backing and a stronger resin coating.

    2 sheets each of 3 micron and 1 micron lapping film. The 3 micron grade has a 'P' resin coating making it slightly more durable tha...
  13. 3M™ Sharpening Film Refill Pack (Basic)

    £25.70

    Workshop Heaven 3M Film Top Up Pack (Basic)

    Contains:
    2 sheets each of 40 micron, 30 micron and 9 micron, pressure sensitive adhesive backed, aluminium oxide microfinishing film. A heavier duty version of standard lapping film with a thicker backing and a stronger resin coating.

    2 sheets of 3 micron lapping film. The 3 micron grade has a 'P' resin coating making it slightly more durable than the other superfine grades. ...
  14. 3M™ Sharpening Film Sample Pack

    £10.30
    Scary sharpening offers a clean, fast, consistent and cost effective way for novice or hobby woodworkers to achieve professional results without the initial outlay for a full set of bench stones. Workshop Heaven supply various grades of PSA backed lapping film and microfinishing film sheets that have been carefully selected for use with the scary sharpening method offering efficiency, ease of use and long service life. Scary sharpening is ...
Grid  List 
Loading Image
Loading Image
Loading Image