3M™ Lapping Film 1 Micron (Yellow-Green) AO (PSA)

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The scary sharpening technique has evolved somewhat with the advent of modern film-backed superabrasives, more commonly referred to as lapping film, which significantly outperform and outlast ordinary wet and dry.

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 sheets that have been carefully selected for use with the scary sharpening method offering efficiency, ease of use and long service life.

Originally developed for polishing fibre optics, 3M lapping film is fast cutting abrasive system that provides precise, consistently uniform, close-tolerance finishes.

A 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.

To use, cut each sheet into the desired width, peel the backing and fix a strip of each grade next to each other on a piece of float glass or other perfectly flat substrate applying firm pressure for an even secure bond.

Scary sharpening is a less expensive option than waterstones in the short term, ideal for the occasional woodworker, or a handy way to temporarily fill the gaps as you build up your waterstone collection. Lapping film can be lubricated used with water, oil or paraffin. If using a combination of stones and film though we recommend using water as a lubricant for the lapping film to avoid contaminating your waterstones.

Sheet size: 8½" x 11" (216mm x 279mm)

Grade: 1 micron

Mineral: Aluminium Oxide

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  • 5
    Additional lapping paper required

    Posted by G Hope on 2nd Sep 2015

    I already had 3micron amd a 0.3micron sheets so this was needed to infill between them. A great sharpening system with very good results. Should be supplied with blue plasters as I still manage to get a knick when I use them!

  • 5
    Efficient sharpening!

    Posted by Mike on 13th Jul 2015

    I have used scary sharp in the past, and it always works very well indeed. Where this medium really shines for me, is making odd shaped slips for beading planes, hollows and rounds, etc. which give superb, mirror sharp results, where my Japanese waterstones won't go. Recommended.

  • 5
    great stuff

    Posted by jez on 2nd May 2015

    ordered this in several grades for razor honing, really impressed. very efficient ordering and delivery service too, i will be using workshop heaven again.

  • 5
    Scary stuff

    Posted by John on 9th Jan 2015

    This is a great product - just mount on float glass to hone blades razor sharp!

  • 5
    Straight razor sharpening made simple

    Posted by Ari on 5th Jun 2014

    I, as a total novice, could put a great edge with these films. As simple as it sounds, I glued the films on sheets of glass and rubbed the blade on the films, yet the result is amazingly sharp. Works wonders!